213379231

素因数分解:

${\mathrm{13}}^4\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:324

約数の個数: 20

約数和(自身を含む): 239607104

約数和(自身を除く): 26227873

約数列:

[1, 13, 31, 169, 241, 403, 2197, 3133, 5239, 7471, 28561, 40729, 68107, 97123, 529477, 885391, 1262599, 6883201, 16413787, 213379231]

約数ペア:

[(1, 213379231), (13, 16413787), (31, 6883201), (169, 1262599), (241, 885391), (403, 529477), (2197, 97123), (3133, 68107), (5239, 40729), (7471, 28561)]