217245630721

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1\times {\mathrm{422137}}^1$

素因数の和:424168

約数の個数: 16

約数和(自身を含む): 255119944576

約数和(自身を除く): 37874313855

約数列:

[1, 7, 37, 259, 1987, 13909, 73519, 422137, 514633, 2954959, 15619069, 109333483, 838786219, 5871503533, 31035090103, 217245630721]

約数ペア:

[(1, 217245630721), (7, 31035090103), (37, 5871503533), (259, 838786219), (1987, 109333483), (13909, 15619069), (73519, 2954959), (422137, 514633)]