21336875

素因数分解:

$5^4\times 7^1\times {\mathrm{4877}}^1$

素因数の和:4904

約数の個数: 20

約数和(自身を含む): 30477744

約数和(自身を除く): 9140869

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4375, 4877, 24385, 34139, 121925, 170695, 609625, 853475, 3048125, 4267375, 21336875]

約数ペア:

[(1, 21336875), (5, 4267375), (7, 3048125), (25, 853475), (35, 609625), (125, 170695), (175, 121925), (625, 34139), (875, 24385), (4375, 4877)]