21070148

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{1987}}^1$

素因数の和:2243

約数の個数: 24

約数和(自身を含む): 40412064

約数和(自身を除く): 19341916

約数列:

[1, 2, 4, 11, 22, 44, 241, 482, 964, 1987, 2651, 3974, 5302, 7948, 10604, 21857, 43714, 87428, 478867, 957734, 1915468, 5267537, 10535074, 21070148]

約数ペア:

[(1, 21070148), (2, 10535074), (4, 5267537), (11, 1915468), (22, 957734), (44, 478867), (241, 87428), (482, 43714), (964, 21857), (1987, 10604), (2651, 7948), (3974, 5302)]