21564159

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:598

約数の個数: 16

約数和(自身を含む): 29213184

約数和(自身を除く): 7649025

約数列:

[1, 3, 151, 181, 263, 453, 543, 789, 27331, 39713, 47603, 81993, 119139, 142809, 7188053, 21564159]

約数ペア:

[(1, 21564159), (3, 7188053), (151, 142809), (181, 119139), (263, 81993), (453, 47603), (543, 39713), (789, 27331)]