21585060

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:522

約数の個数: 144

約数和(自身を含む): 77016576

約数和(自身を除く): 55431516

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 444, 463, 518, 555, 630, 666, 740, 777, 926, 1036, 1110, 1260, 1295, 1332, 1389, 1554, 1665, 1852, 2220, 2315, 2331, 2590, 2778, 3108, 3241, 3330, 3885, 4167, 4630, 4662, 5180, 5556, 6482, 6660, 6945, 7770, 8334, 9260, 9324, 9723, 11655, 12964, 13890, 15540, 16205, 16668, 17131, 19446, 20835, 23310, 27780, 29169, 32410, 34262, 38892, 41670, 46620, 48615, 51393, 58338, 64820, 68524, 83340, 85655, 97230, 102786, 116676, 119917, 145845, 154179, 171310, 194460, 205572, 239834, 256965, 291690, 308358, 342620, 359751, 479668, 513930, 583380, 599585, 616716, 719502, 770895, 1027860, 1079253, 1199170, 1439004, 1541790, 1798755, 2158506, 2398340, 3083580, 3597510, 4317012, 5396265, 7195020, 10792530, 21585060]

約数ペア:

[(1, 21585060), (2, 10792530), (3, 7195020), (4, 5396265), (5, 4317012), (6, 3597510), (7, 3083580), (9, 2398340), (10, 2158506), (12, 1798755), (14, 1541790), (15, 1439004), (18, 1199170), (20, 1079253), (21, 1027860), (28, 770895), (30, 719502), (35, 616716), (36, 599585), (37, 583380), (42, 513930), (45, 479668), (60, 359751), (63, 342620), (70, 308358), (74, 291690), (84, 256965), (90, 239834), (105, 205572), (111, 194460), (126, 171310), (140, 154179), (148, 145845), (180, 119917), (185, 116676), (210, 102786), (222, 97230), (252, 85655), (259, 83340), (315, 68524), (333, 64820), (370, 58338), (420, 51393), (444, 48615), (463, 46620), (518, 41670), (555, 38892), (630, 34262), (666, 32410), (740, 29169), (777, 27780), (926, 23310), (1036, 20835), (1110, 19446), (1260, 17131), (1295, 16668), (1332, 16205), (1389, 15540), (1554, 13890), (1665, 12964), (1852, 11655), (2220, 9723), (2315, 9324), (2331, 9260), (2590, 8334), (2778, 7770), (3108, 6945), (3241, 6660), (3330, 6482), (3885, 5556), (4167, 5180), (4630, 4662)]