21131268783

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{443}}^1\times {\mathrm{157427}}^1$

素因数の和:157974

約数の個数: 16

約数和(自身を含む): 28518397056

約数和(自身を除く): 7387128273

約数列:

[1, 3, 101, 303, 443, 1329, 44743, 134229, 157427, 472281, 15900127, 47700381, 69740161, 209220483, 7043756261, 21131268783]

約数ペア:

[(1, 21131268783), (3, 7043756261), (101, 209220483), (303, 69740161), (443, 47700381), (1329, 15900127), (44743, 472281), (134229, 157427)]