20872455

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{44887}}^1$

素因数の和:44926

約数の個数: 16

約数和(自身を含む): 34473984

約数和(自身を除く): 13601529

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 44887, 134661, 224435, 673305, 1391497, 4174491, 6957485, 20872455]

約数ペア:

[(1, 20872455), (3, 6957485), (5, 4174491), (15, 1391497), (31, 673305), (93, 224435), (155, 134661), (465, 44887)]