18807999

素因数分解:

$3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{3911}}^1$

素因数の和:4150

約数の個数: 16

約数和(自身を含む): 28792320

約数和(自身を除く): 9984321

約数列:

[1, 3, 7, 21, 229, 687, 1603, 3911, 4809, 11733, 27377, 82131, 895619, 2686857, 6269333, 18807999]

約数ペア:

[(1, 18807999), (3, 6269333), (7, 2686857), (21, 895619), (229, 82131), (687, 27377), (1603, 11733), (3911, 4809)]