20157018

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3221}}^1$

素因数の和:3382

約数の個数: 32

約数和(自身を含む): 46396800

約数和(自身を除く): 26239782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 149, 298, 447, 894, 1043, 2086, 3129, 3221, 6258, 6442, 9663, 19326, 22547, 45094, 67641, 135282, 479929, 959858, 1439787, 2879574, 3359503, 6719006, 10078509, 20157018]

約数ペア:

[(1, 20157018), (2, 10078509), (3, 6719006), (6, 3359503), (7, 2879574), (14, 1439787), (21, 959858), (42, 479929), (149, 135282), (298, 67641), (447, 45094), (894, 22547), (1043, 19326), (2086, 9663), (3129, 6442), (3221, 6258)]