20556464

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{6089}}^1$

素因数の和:6308

約数の個数: 20

約数和(自身を含む): 40023480

約数和(自身を除く): 19467016

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 6089, 12178, 24356, 48712, 97424, 1284779, 2569558, 5139116, 10278232, 20556464]

約数ペア:

[(1, 20556464), (2, 10278232), (4, 5139116), (8, 2569558), (16, 1284779), (211, 97424), (422, 48712), (844, 24356), (1688, 12178), (3376, 6089)]