19802684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4129}}^1$

素因数の和:4253

約数の個数: 24

約数和(自身を含む): 38161200

約数和(自身を除く): 18358516

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4129, 4796, 8258, 16516, 45419, 90838, 181676, 450061, 900122, 1800244, 4950671, 9901342, 19802684]

約数ペア:

[(1, 19802684), (2, 9901342), (4, 4950671), (11, 1800244), (22, 900122), (44, 450061), (109, 181676), (218, 90838), (436, 45419), (1199, 16516), (2398, 8258), (4129, 4796)]