21402681

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1\times {\mathrm{457}}^1$

素因数の和:760

約数の個数: 16

約数和(自身を含む): 29150784

約数和(自身を除く): 7748103

約数列:

[1, 3, 67, 201, 233, 457, 699, 1371, 15611, 30619, 46833, 91857, 106481, 319443, 7134227, 21402681]

約数ペア:

[(1, 21402681), (3, 7134227), (67, 319443), (201, 106481), (233, 91857), (457, 46833), (699, 30619), (1371, 15611)]