21963560

素因数分解:

$2^3\times 5^1\times {\mathrm{549089}}^1$

素因数の和:549100

約数の個数: 16

約数和(自身を含む): 49418100

約数和(自身を除く): 27454540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 549089, 1098178, 2196356, 2745445, 4392712, 5490890, 10981780, 21963560]

約数ペア:

[(1, 21963560), (2, 10981780), (4, 5490890), (5, 4392712), (8, 2745445), (10, 2196356), (20, 1098178), (40, 549089)]