21556876

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{4049}}^1$

素因数の和:4086

約数の個数: 24

約数和(自身を含む): 41504400

約数和(自身を除く): 19947524

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1331, 2662, 4049, 5324, 8098, 16196, 44539, 89078, 178156, 489929, 979858, 1959716, 5389219, 10778438, 21556876]

約数ペア:

[(1, 21556876), (2, 10778438), (4, 5389219), (11, 1959716), (22, 979858), (44, 489929), (121, 178156), (242, 89078), (484, 44539), (1331, 16196), (2662, 8098), (4049, 5324)]