20783906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72671}}^1$

素因数の和:72697

約数の個数: 16

約数和(自身を含む): 36626688

約数和(自身を除く): 15842782

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 72671, 145342, 799381, 944723, 1598762, 1889446, 10391953, 20783906]

約数ペア:

[(1, 20783906), (2, 10391953), (11, 1889446), (13, 1598762), (22, 944723), (26, 799381), (143, 145342), (286, 72671)]