18019660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{52999}}^1$

素因数の和:53025

約数の個数: 24

約数和(自身を含む): 40068000

約数和(自身を除く): 22048340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 52999, 105998, 211996, 264995, 529990, 900983, 1059980, 1801966, 3603932, 4504915, 9009830, 18019660]

約数ペア:

[(1, 18019660), (2, 9009830), (4, 4504915), (5, 3603932), (10, 1801966), (17, 1059980), (20, 900983), (34, 529990), (68, 264995), (85, 211996), (170, 105998), (340, 52999)]