21897125

素因数分解:

$5^3\times {\mathrm{283}}^1\times {\mathrm{619}}^1$

素因数の和:917

約数の個数: 16

約数和(自身を含む): 27468480

約数和(自身を除く): 5571355

約数列:

[1, 5, 25, 125, 283, 619, 1415, 3095, 7075, 15475, 35375, 77375, 175177, 875885, 4379425, 21897125]

約数ペア:

[(1, 21897125), (5, 4379425), (25, 875885), (125, 175177), (283, 77375), (619, 35375), (1415, 15475), (3095, 7075)]