18754671

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 28421568

約数和(自身を除く): 9666897

約数列:

[1, 3, 13, 37, 39, 41, 111, 123, 317, 481, 533, 951, 1443, 1517, 1599, 4121, 4551, 11729, 12363, 12997, 19721, 35187, 38991, 59163, 152477, 168961, 457431, 480889, 506883, 1442667, 6251557, 18754671]

約数ペア:

[(1, 18754671), (3, 6251557), (13, 1442667), (37, 506883), (39, 480889), (41, 457431), (111, 168961), (123, 152477), (317, 59163), (481, 38991), (533, 35187), (951, 19721), (1443, 12997), (1517, 12363), (1599, 11729), (4121, 4551)]