21888875

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{4271}}^1$

素因数の和:4327

約数の個数: 16

約数和(自身を含む): 27990144

約数和(自身を除く): 6101269

約数列:

[1, 5, 25, 41, 125, 205, 1025, 4271, 5125, 21355, 106775, 175111, 533875, 875555, 4377775, 21888875]

約数ペア:

[(1, 21888875), (5, 4377775), (25, 875555), (41, 533875), (125, 175111), (205, 106775), (1025, 21355), (4271, 5125)]