261839931361

素因数分解:

${\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{665719}}^1$

素因数の和:666028

約数の個数: 16

約数和(自身を含む): 279495884800

約数和(自身を除く): 17655953439

約数列:

[1, 19, 127, 163, 2413, 3097, 20701, 393319, 665719, 12648661, 84546313, 108512197, 1606379947, 2061731743, 13781049019, 261839931361]

約数ペア:

[(1, 261839931361), (19, 13781049019), (127, 2061731743), (163, 1606379947), (2413, 108512197), (3097, 84546313), (20701, 12648661), (393319, 665719)]