21150909

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60259}}^1$

素因数の和:60281

約数の個数: 16

約数和(自身を含む): 33745600

約数和(自身を除く): 12594691

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60259, 180777, 542331, 783367, 1626993, 2350101, 7050303, 21150909]

約数ペア:

[(1, 21150909), (3, 7050303), (9, 2350101), (13, 1626993), (27, 783367), (39, 542331), (117, 180777), (351, 60259)]