216803620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{985471}}^1$

素因数の和:985491

約数の個数: 24

約数和(自身を含む): 496677888

約数和(自身を除く): 279874268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 985471, 1970942, 3941884, 4927355, 9854710, 10840181, 19709420, 21680362, 43360724, 54200905, 108401810, 216803620]

約数ペア:

[(1, 216803620), (2, 108401810), (4, 54200905), (5, 43360724), (10, 21680362), (11, 19709420), (20, 10840181), (22, 9854710), (44, 4927355), (55, 3941884), (110, 1970942), (220, 985471)]