21102767

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 24885312

約数和(自身を除く): 3782545

約数列:

[1, 7, 61, 73, 427, 511, 677, 4453, 4739, 31171, 41297, 49421, 289079, 345947, 3014681, 21102767]

約数ペア:

[(1, 21102767), (7, 3014681), (61, 345947), (73, 289079), (427, 49421), (511, 41297), (677, 31171), (4453, 4739)]