21460444

素因数分解:

$2^2\times {\mathrm{37}}^2\times {\mathrm{3919}}^1$

素因数の和:3997

約数の個数: 18

約数和(自身を含む): 38608080

約数和(自身を除く): 17147636

約数列:

[1, 2, 4, 37, 74, 148, 1369, 2738, 3919, 5476, 7838, 15676, 145003, 290006, 580012, 5365111, 10730222, 21460444]

約数ペア:

[(1, 21460444), (2, 10730222), (4, 5365111), (37, 580012), (74, 290006), (148, 145003), (1369, 15676), (2738, 7838), (3919, 5476)]