18643268

素因数分解:

$2^2\times 7^1\times {\mathrm{811}}^1\times {\mathrm{821}}^1$

素因数の和:1643

約数の個数: 24

約数和(自身を含む): 37377984

約数和(自身を除く): 18734716

約数列:

[1, 2, 4, 7, 14, 28, 811, 821, 1622, 1642, 3244, 3284, 5677, 5747, 11354, 11494, 22708, 22988, 665831, 1331662, 2663324, 4660817, 9321634, 18643268]

約数ペア:

[(1, 18643268), (2, 9321634), (4, 4660817), (7, 2663324), (14, 1331662), (28, 665831), (811, 22988), (821, 22708), (1622, 11494), (1642, 11354), (3244, 5747), (3284, 5677)]