20512778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4219}}^1$

素因数の和:4262

約数の個数: 32

約数和(自身を含む): 38283840

約数和(自身を除く): 17771062

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4219, 4862, 8438, 46409, 54847, 71723, 92818, 109694, 143446, 603317, 788953, 932399, 1206634, 1577906, 1864798, 10256389, 20512778]

約数ペア:

[(1, 20512778), (2, 10256389), (11, 1864798), (13, 1577906), (17, 1206634), (22, 932399), (26, 788953), (34, 603317), (143, 143446), (187, 109694), (221, 92818), (286, 71723), (374, 54847), (442, 46409), (2431, 8438), (4219, 4862)]