12865279

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{587}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 15353856

約数和(自身を除く): 2488577

約数列:

[1, 7, 31, 101, 217, 587, 707, 3131, 4109, 18197, 21917, 59287, 127379, 415009, 1837897, 12865279]

約数ペア:

[(1, 12865279), (7, 1837897), (31, 415009), (101, 127379), (217, 59287), (587, 21917), (707, 18197), (3131, 4109)]