991198

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:651

約数の個数: 16

約数和(自身を含む): 1627920

約数和(自身を除く): 636722

約数列:

[1, 2, 13, 26, 67, 134, 569, 871, 1138, 1742, 7397, 14794, 38123, 76246, 495599, 991198]

約数ペア:

[(1, 991198), (2, 495599), (13, 76246), (26, 38123), (67, 14794), (134, 7397), (569, 1742), (871, 1138)]