21813154

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{3919}}^1$

素因数の和:3966

約数の個数: 24

約数和(自身を含む): 37537920

約数和(自身を除く): 15724766

約数列:

[1, 2, 11, 22, 23, 46, 121, 242, 253, 506, 2783, 3919, 5566, 7838, 43109, 86218, 90137, 180274, 474199, 948398, 991507, 1983014, 10906577, 21813154]

約数ペア:

[(1, 21813154), (2, 10906577), (11, 1983014), (22, 991507), (23, 948398), (46, 474199), (121, 180274), (242, 90137), (253, 86218), (506, 43109), (2783, 7838), (3919, 5566)]