21745500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:157

約数の個数: 192

約数和(自身を含む): 76876800

約数和(自身を除く): 55131300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 25, 28, 30, 35, 38, 42, 50, 57, 60, 70, 75, 76, 84, 95, 100, 105, 109, 114, 125, 133, 140, 150, 175, 190, 210, 218, 228, 250, 266, 285, 300, 327, 350, 375, 380, 399, 420, 436, 475, 500, 525, 532, 545, 570, 654, 665, 700, 750, 763, 798, 875, 950, 1050, 1090, 1140, 1308, 1330, 1425, 1500, 1526, 1596, 1635, 1750, 1900, 1995, 2071, 2100, 2180, 2289, 2375, 2625, 2660, 2725, 2850, 3052, 3270, 3325, 3500, 3815, 3990, 4142, 4578, 4750, 5250, 5450, 5700, 6213, 6540, 6650, 7125, 7630, 7980, 8175, 8284, 9156, 9500, 9975, 10355, 10500, 10900, 11445, 12426, 13300, 13625, 14250, 14497, 15260, 16350, 16625, 19075, 19950, 20710, 22890, 24852, 27250, 28500, 28994, 31065, 32700, 33250, 38150, 39900, 40875, 41420, 43491, 45780, 49875, 51775, 54500, 57225, 57988, 62130, 66500, 72485, 76300, 81750, 86982, 95375, 99750, 103550, 114450, 124260, 144970, 155325, 163500, 173964, 190750, 199500, 207100, 217455, 228900, 258875, 286125, 289940, 310650, 362425, 381500, 434910, 517750, 572250, 621300, 724850, 776625, 869820, 1035500, 1087275, 1144500, 1449700, 1553250, 1812125, 2174550, 3106500, 3624250, 4349100, 5436375, 7248500, 10872750, 21745500]

約数ペア:

[(1, 21745500), (2, 10872750), (3, 7248500), (4, 5436375), (5, 4349100), (6, 3624250), (7, 3106500), (10, 2174550), (12, 1812125), (14, 1553250), (15, 1449700), (19, 1144500), (20, 1087275), (21, 1035500), (25, 869820), (28, 776625), (30, 724850), (35, 621300), (38, 572250), (42, 517750), (50, 434910), (57, 381500), (60, 362425), (70, 310650), (75, 289940), (76, 286125), (84, 258875), (95, 228900), (100, 217455), (105, 207100), (109, 199500), (114, 190750), (125, 173964), (133, 163500), (140, 155325), (150, 144970), (175, 124260), (190, 114450), (210, 103550), (218, 99750), (228, 95375), (250, 86982), (266, 81750), (285, 76300), (300, 72485), (327, 66500), (350, 62130), (375, 57988), (380, 57225), (399, 54500), (420, 51775), (436, 49875), (475, 45780), (500, 43491), (525, 41420), (532, 40875), (545, 39900), (570, 38150), (654, 33250), (665, 32700), (700, 31065), (750, 28994), (763, 28500), (798, 27250), (875, 24852), (950, 22890), (1050, 20710), (1090, 19950), (1140, 19075), (1308, 16625), (1330, 16350), (1425, 15260), (1500, 14497), (1526, 14250), (1596, 13625), (1635, 13300), (1750, 12426), (1900, 11445), (1995, 10900), (2071, 10500), (2100, 10355), (2180, 9975), (2289, 9500), (2375, 9156), (2625, 8284), (2660, 8175), (2725, 7980), (2850, 7630), (3052, 7125), (3270, 6650), (3325, 6540), (3500, 6213), (3815, 5700), (3990, 5450), (4142, 5250), (4578, 4750)]