21384300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{599}}^1$

素因数の和:640

約数の個数: 144

約数和(自身を含む): 74995200

約数和(自身を除く): 53610900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 25, 28, 30, 34, 35, 42, 50, 51, 60, 68, 70, 75, 84, 85, 100, 102, 105, 119, 140, 150, 170, 175, 204, 210, 238, 255, 300, 340, 350, 357, 420, 425, 476, 510, 525, 595, 599, 700, 714, 850, 1020, 1050, 1190, 1198, 1275, 1428, 1700, 1785, 1797, 2100, 2380, 2396, 2550, 2975, 2995, 3570, 3594, 4193, 5100, 5950, 5990, 7140, 7188, 8386, 8925, 8985, 10183, 11900, 11980, 12579, 14975, 16772, 17850, 17970, 20366, 20965, 25158, 29950, 30549, 35700, 35940, 40732, 41930, 44925, 50316, 50915, 59900, 61098, 62895, 71281, 83860, 89850, 101830, 104825, 122196, 125790, 142562, 152745, 179700, 203660, 209650, 213843, 251580, 254575, 285124, 305490, 314475, 356405, 419300, 427686, 509150, 610980, 628950, 712810, 763725, 855372, 1018300, 1069215, 1257900, 1425620, 1527450, 1782025, 2138430, 3054900, 3564050, 4276860, 5346075, 7128100, 10692150, 21384300]

約数ペア:

[(1, 21384300), (2, 10692150), (3, 7128100), (4, 5346075), (5, 4276860), (6, 3564050), (7, 3054900), (10, 2138430), (12, 1782025), (14, 1527450), (15, 1425620), (17, 1257900), (20, 1069215), (21, 1018300), (25, 855372), (28, 763725), (30, 712810), (34, 628950), (35, 610980), (42, 509150), (50, 427686), (51, 419300), (60, 356405), (68, 314475), (70, 305490), (75, 285124), (84, 254575), (85, 251580), (100, 213843), (102, 209650), (105, 203660), (119, 179700), (140, 152745), (150, 142562), (170, 125790), (175, 122196), (204, 104825), (210, 101830), (238, 89850), (255, 83860), (300, 71281), (340, 62895), (350, 61098), (357, 59900), (420, 50915), (425, 50316), (476, 44925), (510, 41930), (525, 40732), (595, 35940), (599, 35700), (700, 30549), (714, 29950), (850, 25158), (1020, 20965), (1050, 20366), (1190, 17970), (1198, 17850), (1275, 16772), (1428, 14975), (1700, 12579), (1785, 11980), (1797, 11900), (2100, 10183), (2380, 8985), (2396, 8925), (2550, 8386), (2975, 7188), (2995, 7140), (3570, 5990), (3594, 5950), (4193, 5100)]