21491657

素因数分解:

${\mathrm{11}}^3\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:341

約数の個数: 16

約数和(自身を含む): 24091584

約数和(自身を除く): 2599927

約数列:

[1, 11, 67, 121, 241, 737, 1331, 2651, 8107, 16147, 29161, 89177, 177617, 320771, 1953787, 21491657]

約数ペア:

[(1, 21491657), (11, 1953787), (67, 320771), (121, 177617), (241, 89177), (737, 29161), (1331, 16147), (2651, 8107)]