18784282

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{77621}}^1$

素因数の和:77645

約数の個数: 12

約数和(自身を含む): 30971178

約数和(自身を除く): 12186896

約数列:

[1, 2, 11, 22, 121, 242, 77621, 155242, 853831, 1707662, 9392141, 18784282]

約数ペア:

[(1, 18784282), (2, 9392141), (11, 1707662), (22, 853831), (121, 155242), (242, 77621)]