21968210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4871}}^1$

素因数の和:4930

約数の個数: 32

約数和(自身を含む): 44198784

約数和(自身を除く): 22230574

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4510, 4871, 9742, 24355, 48710, 53581, 107162, 199711, 267905, 399422, 535810, 998555, 1997110, 2196821, 4393642, 10984105, 21968210]

約数ペア:

[(1, 21968210), (2, 10984105), (5, 4393642), (10, 2196821), (11, 1997110), (22, 998555), (41, 535810), (55, 399422), (82, 267905), (110, 199711), (205, 107162), (410, 53581), (451, 48710), (902, 24355), (2255, 9742), (4510, 4871)]