21316875

素因数分解:

$3^1\times 5^4\times {\mathrm{11369}}^1$

素因数の和:11392

約数の個数: 20

約数和(自身を含む): 35519880

約数和(自身を除く): 14203005

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 11369, 34107, 56845, 170535, 284225, 852675, 1421125, 4263375, 7105625, 21316875]

約数ペア:

[(1, 21316875), (3, 7105625), (5, 4263375), (15, 1421125), (25, 852675), (75, 284225), (125, 170535), (375, 56845), (625, 34107), (1875, 11369)]