21172118

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{50651}}^1$

素因数の和:50683

約数の個数: 16

約数和(自身を含む): 36469440

約数和(自身を除く): 15297322

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 50651, 101302, 557161, 962369, 1114322, 1924738, 10586059, 21172118]

約数ペア:

[(1, 21172118), (2, 10586059), (11, 1924738), (19, 1114322), (22, 962369), (38, 557161), (209, 101302), (418, 50651)]