21086817

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{3659}}^1$

素因数の和:3792

約数の個数: 16

約数和(自身を含む): 30041280

約数和(自身を除く): 8954463

約数列:

[1, 3, 17, 51, 113, 339, 1921, 3659, 5763, 10977, 62203, 186609, 413467, 1240401, 7028939, 21086817]

約数ペア:

[(1, 21086817), (3, 7028939), (17, 1240401), (51, 413467), (113, 186609), (339, 62203), (1921, 10977), (3659, 5763)]