21138600

素因数分解:

$2^3\times 3^1\times 5^2\times 7^2\times {\mathrm{719}}^1$

素因数の和:752

約数の個数: 144

約数和(自身を含む): 76334400

約数和(自身を除く): 55195800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 140, 147, 150, 168, 175, 196, 200, 210, 245, 280, 294, 300, 350, 392, 420, 490, 525, 588, 600, 700, 719, 735, 840, 980, 1050, 1176, 1225, 1400, 1438, 1470, 1960, 2100, 2157, 2450, 2876, 2940, 3595, 3675, 4200, 4314, 4900, 5033, 5752, 5880, 7190, 7350, 8628, 9800, 10066, 10785, 14380, 14700, 15099, 17256, 17975, 20132, 21570, 25165, 28760, 29400, 30198, 35231, 35950, 40264, 43140, 50330, 53925, 60396, 70462, 71900, 75495, 86280, 100660, 105693, 107850, 120792, 125825, 140924, 143800, 150990, 176155, 201320, 211386, 215700, 251650, 281848, 301980, 352310, 377475, 422772, 431400, 503300, 528465, 603960, 704620, 754950, 845544, 880775, 1006600, 1056930, 1409240, 1509900, 1761550, 2113860, 2642325, 3019800, 3523100, 4227720, 5284650, 7046200, 10569300, 21138600]

約数ペア:

[(1, 21138600), (2, 10569300), (3, 7046200), (4, 5284650), (5, 4227720), (6, 3523100), (7, 3019800), (8, 2642325), (10, 2113860), (12, 1761550), (14, 1509900), (15, 1409240), (20, 1056930), (21, 1006600), (24, 880775), (25, 845544), (28, 754950), (30, 704620), (35, 603960), (40, 528465), (42, 503300), (49, 431400), (50, 422772), (56, 377475), (60, 352310), (70, 301980), (75, 281848), (84, 251650), (98, 215700), (100, 211386), (105, 201320), (120, 176155), (140, 150990), (147, 143800), (150, 140924), (168, 125825), (175, 120792), (196, 107850), (200, 105693), (210, 100660), (245, 86280), (280, 75495), (294, 71900), (300, 70462), (350, 60396), (392, 53925), (420, 50330), (490, 43140), (525, 40264), (588, 35950), (600, 35231), (700, 30198), (719, 29400), (735, 28760), (840, 25165), (980, 21570), (1050, 20132), (1176, 17975), (1225, 17256), (1400, 15099), (1438, 14700), (1470, 14380), (1960, 10785), (2100, 10066), (2157, 9800), (2450, 8628), (2876, 7350), (2940, 7190), (3595, 5880), (3675, 5752), (4200, 5033), (4314, 4900)]