21820859

素因数分解:

${\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:338

約数の個数: 16

約数和(自身を含む): 23522304

約数和(自身を除く): 1701445

約数列:

[1, 23, 61, 103, 151, 1403, 2369, 3473, 6283, 9211, 15553, 144509, 211853, 357719, 948733, 21820859]

約数ペア:

[(1, 21820859), (23, 948733), (61, 357719), (103, 211853), (151, 144509), (1403, 15553), (2369, 9211), (3473, 6283)]