20402333

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1171}}^1$

素因数の和:1328

約数の個数: 16

約数和(自身を含む): 24752640

約数和(自身を除く): 4350307

約数列:

[1, 7, 19, 131, 133, 917, 1171, 2489, 8197, 17423, 22249, 153401, 155743, 1073807, 2914619, 20402333]

約数ペア:

[(1, 20402333), (7, 2914619), (19, 1073807), (131, 155743), (133, 153401), (917, 22249), (1171, 17423), (2489, 8197)]