21451670

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{24103}}^1$

素因数の和:24199

約数の個数: 16

約数和(自身を含む): 39048480

約数和(自身を除く): 17596810

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 24103, 48206, 120515, 241030, 2145167, 4290334, 10725835, 21451670]

約数ペア:

[(1, 21451670), (2, 10725835), (5, 4290334), (10, 2145167), (89, 241030), (178, 120515), (445, 48206), (890, 24103)]