20118868

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{787}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 44481024

約数和(自身を除く): 24362156

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 83, 154, 166, 308, 332, 581, 787, 913, 1162, 1574, 1826, 2324, 3148, 3652, 5509, 6391, 8657, 11018, 12782, 17314, 22036, 25564, 34628, 60599, 65321, 121198, 130642, 242396, 261284, 457247, 718531, 914494, 1437062, 1828988, 2874124, 5029717, 10059434, 20118868]

約数ペア:

[(1, 20118868), (2, 10059434), (4, 5029717), (7, 2874124), (11, 1828988), (14, 1437062), (22, 914494), (28, 718531), (44, 457247), (77, 261284), (83, 242396), (154, 130642), (166, 121198), (308, 65321), (332, 60599), (581, 34628), (787, 25564), (913, 22036), (1162, 17314), (1574, 12782), (1826, 11018), (2324, 8657), (3148, 6391), (3652, 5509)]