645865863

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{23117}}^1$

素因数の和:23326

約数の個数: 16

約数和(自身を含む): 880333440

約数和(自身を除く): 234467577

約数列:

[1, 3, 67, 139, 201, 417, 9313, 23117, 27939, 69351, 1548839, 3213263, 4646517, 9639789, 215288621, 645865863]

約数ペア:

[(1, 645865863), (3, 215288621), (67, 9639789), (139, 4646517), (201, 3213263), (417, 1548839), (9313, 69351), (23117, 27939)]