21005231

素因数分解:

${\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:386

約数の個数: 16

約数和(自身を含む): 23237760

約数和(自身を除く): 2232529

約数列:

[1, 13, 79, 113, 181, 1027, 1469, 2353, 8927, 14299, 20453, 116051, 185887, 265889, 1615787, 21005231]

約数ペア:

[(1, 21005231), (13, 1615787), (79, 265889), (113, 185887), (181, 116051), (1027, 20453), (1469, 14299), (2353, 8927)]