21531292

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{1117}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 38816960

約数和(自身を除く): 17285668

約数列:

[1, 2, 4, 61, 79, 122, 158, 244, 316, 1117, 2234, 4468, 4819, 9638, 19276, 68137, 88243, 136274, 176486, 272548, 352972, 5382823, 10765646, 21531292]

約数ペア:

[(1, 21531292), (2, 10765646), (4, 5382823), (61, 352972), (79, 272548), (122, 176486), (158, 136274), (244, 88243), (316, 68137), (1117, 19276), (2234, 9638), (4468, 4819)]