639202207

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{246131}}^1$

素因数の和:246198

約数の個数: 12

約数和(自身を含む): 757594296

約数和(自身を除く): 118392089

約数列:

[1, 7, 49, 53, 371, 2597, 246131, 1722917, 12060419, 13044943, 91314601, 639202207]

約数ペア:

[(1, 639202207), (7, 91314601), (49, 13044943), (53, 12060419), (371, 1722917), (2597, 246131)]