21396188

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44207}}^1$

素因数の和:44233

約数の個数: 18

約数和(自身を含む): 41157648

約数和(自身を除く): 19761460

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44207, 88414, 176828, 486277, 972554, 1945108, 5349047, 10698094, 21396188]

約数ペア:

[(1, 21396188), (2, 10698094), (4, 5349047), (11, 1945108), (22, 972554), (44, 486277), (121, 176828), (242, 88414), (484, 44207)]