21894267

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1907}}^1$

素因数の和:2042

約数の個数: 16

約数和(自身を含む): 30222720

約数和(自身を除く): 8328453

約数列:

[1, 3, 43, 89, 129, 267, 1907, 3827, 5721, 11481, 82001, 169723, 246003, 509169, 7298089, 21894267]

約数ペア:

[(1, 21894267), (3, 7298089), (43, 509169), (89, 246003), (129, 169723), (267, 82001), (1907, 11481), (3827, 5721)]