19736456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{145121}}^1$

素因数の和:145144

約数の個数: 16

約数和(自身を含む): 39182940

約数和(自身を除く): 19446484

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 145121, 290242, 580484, 1160968, 2467057, 4934114, 9868228, 19736456]

約数ペア:

[(1, 19736456), (2, 9868228), (4, 4934114), (8, 2467057), (17, 1160968), (34, 580484), (68, 290242), (136, 145121)]