19912917

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{2203}}^1$

素因数の和:2360

約数の個数: 16

約数和(自身を含む): 27929088

約数和(自身を除く): 8016171

約数列:

[1, 3, 23, 69, 131, 393, 2203, 3013, 6609, 9039, 50669, 152007, 288593, 865779, 6637639, 19912917]

約数ペア:

[(1, 19912917), (3, 6637639), (23, 865779), (69, 288593), (131, 152007), (393, 50669), (2203, 9039), (3013, 6609)]