21269487

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{2153}}^1$

素因数の和:2282

約数の個数: 16

約数和(自身を含む): 29466720

約数和(自身を除く): 8197233

約数列:

[1, 3, 37, 89, 111, 267, 2153, 3293, 6459, 9879, 79661, 191617, 238983, 574851, 7089829, 21269487]

約数ペア:

[(1, 21269487), (3, 7089829), (37, 574851), (89, 238983), (111, 191617), (267, 79661), (2153, 9879), (3293, 6459)]