19961812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3727}}^1$

素因数の和:3847

約数の個数: 24

約数和(自身を含む): 37995776

約数和(自身を除く): 18033964

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 3727, 5356, 7454, 14908, 48451, 96902, 193804, 383881, 767762, 1535524, 4990453, 9980906, 19961812]

約数ペア:

[(1, 19961812), (2, 9980906), (4, 4990453), (13, 1535524), (26, 767762), (52, 383881), (103, 193804), (206, 96902), (412, 48451), (1339, 14908), (2678, 7454), (3727, 5356)]