20879974

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{3371}}^1$

素因数の和:3555

約数の個数: 16

約数和(自身を含む): 33180480

約数和(自身を除く): 12300506

約数列:

[1, 2, 19, 38, 163, 326, 3097, 3371, 6194, 6742, 64049, 128098, 549473, 1098946, 10439987, 20879974]

約数ペア:

[(1, 20879974), (2, 10439987), (19, 1098946), (38, 549473), (163, 128098), (326, 64049), (3097, 6742), (3371, 6194)]