21225399

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{8123}}^1$

素因数の和:8206

約数の個数: 16

約数和(自身を含む): 30936192

約数和(自身を除く): 9710793

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 8123, 24369, 105599, 316797, 544241, 1632723, 7075133, 21225399]

約数ペア:

[(1, 21225399), (3, 7075133), (13, 1632723), (39, 544241), (67, 316797), (201, 105599), (871, 24369), (2613, 8123)]