19888445

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{1061}}^1$

素因数の和:1252

約数の個数: 16

約数和(自身を含む): 25080192

約数和(自身を除く): 5191747

約数列:

[1, 5, 23, 115, 163, 815, 1061, 3749, 5305, 18745, 24403, 122015, 172943, 864715, 3977689, 19888445]

約数ペア:

[(1, 19888445), (5, 3977689), (23, 864715), (115, 172943), (163, 122015), (815, 24403), (1061, 18745), (3749, 5305)]