21147842

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1\times {\mathrm{647}}^1$

素因数の和:985

約数の個数: 16

約数和(自身を含む): 32425920

約数和(自身を除く): 11278078

約数列:

[1, 2, 59, 118, 277, 554, 647, 1294, 16343, 32686, 38173, 76346, 179219, 358438, 10573921, 21147842]

約数ペア:

[(1, 21147842), (2, 10573921), (59, 358438), (118, 179219), (277, 76346), (554, 38173), (647, 32686), (1294, 16343)]