21491327

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1097}}^1$

素因数の和:1258

約数の個数: 16

約数和(自身を含む): 25456032

約数和(自身を除く): 3964705

約数列:

[1, 11, 13, 137, 143, 1097, 1507, 1781, 12067, 14261, 19591, 150289, 156871, 1653179, 1953757, 21491327]

約数ペア:

[(1, 21491327), (11, 1953757), (13, 1653179), (137, 156871), (143, 150289), (1097, 19591), (1507, 14261), (1781, 12067)]