21095875

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{2377}}^1$

素因数の和:2463

約数の個数: 16

約数和(自身を含む): 26709696

約数和(自身を除く): 5613821

約数列:

[1, 5, 25, 71, 125, 355, 1775, 2377, 8875, 11885, 59425, 168767, 297125, 843835, 4219175, 21095875]

約数ペア:

[(1, 21095875), (5, 4219175), (25, 843835), (71, 297125), (125, 168767), (355, 59425), (1775, 11885), (2377, 8875)]