21451404

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{691}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 54252800

約数和(自身を除く): 32801396

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 199, 398, 597, 691, 796, 1194, 1382, 2073, 2388, 2587, 2764, 4146, 5174, 7761, 8292, 8983, 10348, 15522, 17966, 26949, 31044, 35932, 53898, 107796, 137509, 275018, 412527, 550036, 825054, 1650108, 1787617, 3575234, 5362851, 7150468, 10725702, 21451404]

約数ペア:

[(1, 21451404), (2, 10725702), (3, 7150468), (4, 5362851), (6, 3575234), (12, 1787617), (13, 1650108), (26, 825054), (39, 550036), (52, 412527), (78, 275018), (156, 137509), (199, 107796), (398, 53898), (597, 35932), (691, 31044), (796, 26949), (1194, 17966), (1382, 15522), (2073, 10348), (2388, 8983), (2587, 8292), (2764, 7761), (4146, 5174)]