15215781

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{5531}}^1$

素因数の和:5672

約数の個数: 16

約数和(自身を含む): 23367168

約数和(自身を除く): 8151387

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 5531, 16593, 38717, 116151, 724561, 2173683, 5071927, 15215781]

約数ペア:

[(1, 15215781), (3, 5071927), (7, 2173683), (21, 724561), (131, 116151), (393, 38717), (917, 16593), (2751, 5531)]