21795553

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 24380496

約数和(自身を除く): 2584943

約数列:

[1, 13, 37, 113, 401, 481, 1469, 4181, 5213, 14837, 45313, 54353, 192881, 589069, 1676581, 21795553]

約数ペア:

[(1, 21795553), (13, 1676581), (37, 589069), (113, 192881), (401, 54353), (481, 45313), (1469, 14837), (4181, 5213)]