21122783

素因数分解:

${\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:422

約数の個数: 16

約数和(自身を含む): 23654400

約数和(自身を除く): 2531617

約数列:

[1, 11, 79, 109, 223, 869, 1199, 2453, 8611, 17617, 24307, 94721, 193787, 267377, 1920253, 21122783]

約数ペア:

[(1, 21122783), (11, 1920253), (79, 267377), (109, 193787), (223, 94721), (869, 24307), (1199, 17617), (2453, 8611)]