20880887

素因数分解:

${\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:334

約数の個数: 16

約数和(自身を含む): 22394880

約数和(自身を除く): 1513993

約数列:

[1, 31, 53, 71, 179, 1643, 2201, 3763, 5549, 9487, 12709, 116653, 294097, 393979, 673577, 20880887]

約数ペア:

[(1, 20880887), (31, 673577), (53, 393979), (71, 294097), (179, 116653), (1643, 12709), (2201, 9487), (3763, 5549)]