1971399157

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1\times {\mathrm{26387}}^1$

素因数の和:27228

約数の個数: 16

約数和(自身を含む): 2429384832

約数和(自身を除く): 457985675

約数列:

[1, 7, 13, 91, 821, 5747, 10673, 26387, 74711, 184709, 343031, 2401217, 21663727, 151646089, 281628451, 1971399157]

約数ペア:

[(1, 1971399157), (7, 281628451), (13, 151646089), (91, 21663727), (821, 2401217), (5747, 343031), (10673, 184709), (26387, 74711)]