21349911

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{1223}}^1$

素因数の和:1283

約数の個数: 24

約数和(自身を含む): 32489856

約数和(自身を除く): 11139945

約数列:

[1, 3, 11, 23, 33, 69, 253, 529, 759, 1223, 1587, 3669, 5819, 13453, 17457, 28129, 40359, 84387, 309419, 646967, 928257, 1940901, 7116637, 21349911]

約数ペア:

[(1, 21349911), (3, 7116637), (11, 1940901), (23, 928257), (33, 646967), (69, 309419), (253, 84387), (529, 40359), (759, 28129), (1223, 17457), (1587, 13453), (3669, 5819)]