20810716

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{809}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 37422000

約数和(自身を除く): 16611284

約数列:

[1, 2, 4, 59, 109, 118, 218, 236, 436, 809, 1618, 3236, 6431, 12862, 25724, 47731, 88181, 95462, 176362, 190924, 352724, 5202679, 10405358, 20810716]

約数ペア:

[(1, 20810716), (2, 10405358), (4, 5202679), (59, 352724), (109, 190924), (118, 176362), (218, 95462), (236, 88181), (436, 47731), (809, 25724), (1618, 12862), (3236, 6431)]