209121009

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{827}}^1\times {\mathrm{2719}}^1$

素因数の和:3580

約数の個数: 16

約数和(自身を含む): 288276480

約数和(自身を除く): 79155471

約数列:

[1, 3, 31, 93, 827, 2481, 2719, 8157, 25637, 76911, 84289, 252867, 2248613, 6745839, 69707003, 209121009]

約数ペア:

[(1, 209121009), (3, 69707003), (31, 6745839), (93, 2248613), (827, 252867), (2481, 84289), (2719, 76911), (8157, 25637)]