20451636

素因数分解:

$2^2\times 3^3\times {\mathrm{409}}^1\times {\mathrm{463}}^1$

素因数の和:885

約数の個数: 48

約数和(自身を含む): 53267200

約数和(自身を除く): 32815564

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 409, 463, 818, 926, 1227, 1389, 1636, 1852, 2454, 2778, 3681, 4167, 4908, 5556, 7362, 8334, 11043, 12501, 14724, 16668, 22086, 25002, 44172, 50004, 189367, 378734, 568101, 757468, 1136202, 1704303, 2272404, 3408606, 5112909, 6817212, 10225818, 20451636]

約数ペア:

[(1, 20451636), (2, 10225818), (3, 6817212), (4, 5112909), (6, 3408606), (9, 2272404), (12, 1704303), (18, 1136202), (27, 757468), (36, 568101), (54, 378734), (108, 189367), (409, 50004), (463, 44172), (818, 25002), (926, 22086), (1227, 16668), (1389, 14724), (1636, 12501), (1852, 11043), (2454, 8334), (2778, 7362), (3681, 5556), (4167, 4908)]