21149125

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{2383}}^1$

素因数の和:2469

約数の個数: 16

約数和(自身を含む): 26777088

約数和(自身を除く): 5627963

約数列:

[1, 5, 25, 71, 125, 355, 1775, 2383, 8875, 11915, 59575, 169193, 297875, 845965, 4229825, 21149125]

約数ペア:

[(1, 21149125), (5, 4229825), (25, 845965), (71, 297875), (125, 169193), (355, 59575), (1775, 11915), (2383, 8875)]