18859420

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{6883}}^1$

素因数の和:7029

約数の個数: 24

約数和(自身を含む): 39899664

約数和(自身を除く): 21040244

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 6883, 13766, 27532, 34415, 68830, 137660, 942971, 1885942, 3771884, 4714855, 9429710, 18859420]

約数ペア:

[(1, 18859420), (2, 9429710), (4, 4714855), (5, 3771884), (10, 1885942), (20, 942971), (137, 137660), (274, 68830), (548, 34415), (685, 27532), (1370, 13766), (2740, 6883)]