4321821

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1571}}^1$

素因数の和:1712

約数の個数: 16

約数和(自身を含む): 6640128

約数和(自身を除く): 2318307

約数列:

[1, 3, 7, 21, 131, 393, 917, 1571, 2751, 4713, 10997, 32991, 205801, 617403, 1440607, 4321821]

約数ペア:

[(1, 4321821), (3, 1440607), (7, 617403), (21, 205801), (131, 32991), (393, 10997), (917, 4713), (1571, 2751)]