21159215481

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1\times {\mathrm{374347}}^1$

素因数の和:374660

約数の個数: 16

約数和(自身を含む): 28678051584

約数和(自身を除く): 7518836103

約数列:

[1, 3, 83, 227, 249, 681, 18841, 56523, 374347, 1123041, 31070801, 84976769, 93212403, 254930307, 7053071827, 21159215481]

約数ペア:

[(1, 21159215481), (3, 7053071827), (83, 254930307), (227, 93212403), (249, 84976769), (681, 31070801), (18841, 1123041), (56523, 374347)]