18865689

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 27907200

約数和(自身を除く): 9041511

約数列:

[1, 3, 19, 29, 57, 87, 101, 113, 303, 339, 551, 1653, 1919, 2147, 2929, 3277, 5757, 6441, 8787, 9831, 11413, 34239, 55651, 62263, 166953, 186789, 216847, 330977, 650541, 992931, 6288563, 18865689]

約数ペア:

[(1, 18865689), (3, 6288563), (19, 992931), (29, 650541), (57, 330977), (87, 216847), (101, 186789), (113, 166953), (303, 62263), (339, 55651), (551, 34239), (1653, 11413), (1919, 9831), (2147, 8787), (2929, 6441), (3277, 5757)]