20129883957

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{267959}}^1$

素因数の和:268473

約数の個数: 24

約数和(自身を含む): 30849698880

約数和(自身を除く): 10719814923

約数列:

[1, 3, 9, 17, 51, 153, 491, 1473, 4419, 8347, 25041, 75123, 267959, 803877, 2411631, 4555303, 13665909, 40997727, 131567869, 394703607, 1184110821, 2236653773, 6709961319, 20129883957]

約数ペア:

[(1, 20129883957), (3, 6709961319), (9, 2236653773), (17, 1184110821), (51, 394703607), (153, 131567869), (491, 40997727), (1473, 13665909), (4419, 4555303), (8347, 2411631), (25041, 803877), (75123, 267959)]