15700139

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{503}}^1$

素因数の和:544

約数の個数: 20

約数和(自身を含む): 19763856

約数和(自身を除く): 4063717

約数列:

[1, 7, 13, 49, 91, 343, 503, 637, 2401, 3521, 4459, 6539, 24647, 31213, 45773, 172529, 320411, 1207703, 2242877, 15700139]

約数ペア:

[(1, 15700139), (7, 2242877), (13, 1207703), (49, 320411), (91, 172529), (343, 45773), (503, 31213), (637, 24647), (2401, 6539), (3521, 4459)]