20423505

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 33619968

約数和(自身を除く): 13196463

約数列:

[1, 3, 5, 15, 71, 127, 151, 213, 355, 381, 453, 635, 755, 1065, 1905, 2265, 9017, 10721, 19177, 27051, 32163, 45085, 53605, 57531, 95885, 135255, 160815, 287655, 1361567, 4084701, 6807835, 20423505]

約数ペア:

[(1, 20423505), (3, 6807835), (5, 4084701), (15, 1361567), (71, 287655), (127, 160815), (151, 135255), (213, 95885), (355, 57531), (381, 53605), (453, 45085), (635, 32163), (755, 27051), (1065, 19177), (1905, 10721), (2265, 9017)]