21037500

素因数分解:

$2^2\times 3^2\times 5^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1$

素因数の和:63

約数の個数: 216

約数和(自身を含む): 76776336

約数和(自身を除く): 55738836

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 25, 30, 33, 34, 36, 44, 45, 50, 51, 55, 60, 66, 68, 75, 85, 90, 99, 100, 102, 110, 125, 132, 150, 153, 165, 170, 180, 187, 198, 204, 220, 225, 250, 255, 275, 300, 306, 330, 340, 374, 375, 396, 425, 450, 495, 500, 510, 550, 561, 612, 625, 660, 748, 750, 765, 825, 850, 900, 935, 990, 1020, 1100, 1122, 1125, 1250, 1275, 1375, 1500, 1530, 1650, 1683, 1700, 1870, 1875, 1980, 2125, 2244, 2250, 2475, 2500, 2550, 2750, 2805, 3060, 3125, 3300, 3366, 3740, 3750, 3825, 4125, 4250, 4500, 4675, 4950, 5100, 5500, 5610, 5625, 6250, 6375, 6732, 6875, 7500, 7650, 8250, 8415, 8500, 9350, 9375, 9900, 10625, 11220, 11250, 12375, 12500, 12750, 13750, 14025, 15300, 16500, 16830, 18700, 18750, 19125, 20625, 21250, 22500, 23375, 24750, 25500, 27500, 28050, 28125, 31875, 33660, 34375, 37500, 38250, 41250, 42075, 42500, 46750, 49500, 53125, 56100, 56250, 61875, 63750, 68750, 70125, 76500, 82500, 84150, 93500, 95625, 103125, 106250, 112500, 116875, 123750, 127500, 137500, 140250, 159375, 168300, 191250, 206250, 210375, 212500, 233750, 247500, 280500, 309375, 318750, 350625, 382500, 412500, 420750, 467500, 478125, 584375, 618750, 637500, 701250, 841500, 956250, 1051875, 1168750, 1237500, 1402500, 1753125, 1912500, 2103750, 2337500, 3506250, 4207500, 5259375, 7012500, 10518750, 21037500]

約数ペア:

[(1, 21037500), (2, 10518750), (3, 7012500), (4, 5259375), (5, 4207500), (6, 3506250), (9, 2337500), (10, 2103750), (11, 1912500), (12, 1753125), (15, 1402500), (17, 1237500), (18, 1168750), (20, 1051875), (22, 956250), (25, 841500), (30, 701250), (33, 637500), (34, 618750), (36, 584375), (44, 478125), (45, 467500), (50, 420750), (51, 412500), (55, 382500), (60, 350625), (66, 318750), (68, 309375), (75, 280500), (85, 247500), (90, 233750), (99, 212500), (100, 210375), (102, 206250), (110, 191250), (125, 168300), (132, 159375), (150, 140250), (153, 137500), (165, 127500), (170, 123750), (180, 116875), (187, 112500), (198, 106250), (204, 103125), (220, 95625), (225, 93500), (250, 84150), (255, 82500), (275, 76500), (300, 70125), (306, 68750), (330, 63750), (340, 61875), (374, 56250), (375, 56100), (396, 53125), (425, 49500), (450, 46750), (495, 42500), (500, 42075), (510, 41250), (550, 38250), (561, 37500), (612, 34375), (625, 33660), (660, 31875), (748, 28125), (750, 28050), (765, 27500), (825, 25500), (850, 24750), (900, 23375), (935, 22500), (990, 21250), (1020, 20625), (1100, 19125), (1122, 18750), (1125, 18700), (1250, 16830), (1275, 16500), (1375, 15300), (1500, 14025), (1530, 13750), (1650, 12750), (1683, 12500), (1700, 12375), (1870, 11250), (1875, 11220), (1980, 10625), (2125, 9900), (2244, 9375), (2250, 9350), (2475, 8500), (2500, 8415), (2550, 8250), (2750, 7650), (2805, 7500), (3060, 6875), (3125, 6732), (3300, 6375), (3366, 6250), (3740, 5625), (3750, 5610), (3825, 5500), (4125, 5100), (4250, 4950), (4500, 4675)]