18439864

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 35424000

約数和(自身を除く): 16984136

約数列:

[1, 2, 4, 8, 79, 158, 163, 179, 316, 326, 358, 632, 652, 716, 1304, 1432, 12877, 14141, 25754, 28282, 29177, 51508, 56564, 58354, 103016, 113128, 116708, 233416, 2304983, 4609966, 9219932, 18439864]

約数ペア:

[(1, 18439864), (2, 9219932), (4, 4609966), (8, 2304983), (79, 233416), (158, 116708), (163, 113128), (179, 103016), (316, 58354), (326, 56564), (358, 51508), (632, 29177), (652, 28282), (716, 25754), (1304, 14141), (1432, 12877)]