21835660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1289}}^1$

素因数の和:1327

約数の個数: 72

約数和(自身を含む): 57647520

約数和(自身を除く): 35811860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1289, 1540, 1694, 2420, 2578, 3388, 4235, 5156, 6445, 8470, 9023, 12890, 14179, 16940, 18046, 25780, 28358, 36092, 45115, 56716, 70895, 90230, 99253, 141790, 155969, 180460, 198506, 283580, 311938, 397012, 496265, 623876, 779845, 992530, 1091783, 1559690, 1985060, 2183566, 3119380, 4367132, 5458915, 10917830, 21835660]

約数ペア:

[(1, 21835660), (2, 10917830), (4, 5458915), (5, 4367132), (7, 3119380), (10, 2183566), (11, 1985060), (14, 1559690), (20, 1091783), (22, 992530), (28, 779845), (35, 623876), (44, 496265), (55, 397012), (70, 311938), (77, 283580), (110, 198506), (121, 180460), (140, 155969), (154, 141790), (220, 99253), (242, 90230), (308, 70895), (385, 56716), (484, 45115), (605, 36092), (770, 28358), (847, 25780), (1210, 18046), (1289, 16940), (1540, 14179), (1694, 12890), (2420, 9023), (2578, 8470), (3388, 6445), (4235, 5156)]