21058620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31907}}^1$

素因数の和:31930

約数の個数: 48

約数和(自身を含む): 64326528

約数和(自身を除く): 43267908

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31907, 63814, 95721, 127628, 159535, 191442, 319070, 350977, 382884, 478605, 638140, 701954, 957210, 1052931, 1403908, 1754885, 1914420, 2105862, 3509770, 4211724, 5264655, 7019540, 10529310, 21058620]

約数ペア:

[(1, 21058620), (2, 10529310), (3, 7019540), (4, 5264655), (5, 4211724), (6, 3509770), (10, 2105862), (11, 1914420), (12, 1754885), (15, 1403908), (20, 1052931), (22, 957210), (30, 701954), (33, 638140), (44, 478605), (55, 382884), (60, 350977), (66, 319070), (110, 191442), (132, 159535), (165, 127628), (220, 95721), (330, 63814), (660, 31907)]