18242887

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 22522752

約数和(自身を除く): 4279865

約数列:

[1, 13, 17, 23, 37, 97, 221, 299, 391, 481, 629, 851, 1261, 1649, 2231, 3589, 5083, 8177, 11063, 14467, 21437, 29003, 37927, 46657, 61013, 82547, 188071, 493051, 793169, 1073111, 1403299, 18242887]

約数ペア:

[(1, 18242887), (13, 1403299), (17, 1073111), (23, 793169), (37, 493051), (97, 188071), (221, 82547), (299, 61013), (391, 46657), (481, 37927), (629, 29003), (851, 21437), (1261, 14467), (1649, 11063), (2231, 8177), (3589, 5083)]