19810125

素因数分解:

$3^2\times 5^3\times {\mathrm{17609}}^1$

素因数の和:17630

約数の個数: 24

約数和(自身を含む): 35713080

約数和(自身を除く): 15902955

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 17609, 52827, 88045, 158481, 264135, 440225, 792405, 1320675, 2201125, 3962025, 6603375, 19810125]

約数ペア:

[(1, 19810125), (3, 6603375), (5, 3962025), (9, 2201125), (15, 1320675), (25, 792405), (45, 440225), (75, 264135), (125, 158481), (225, 88045), (375, 52827), (1125, 17609)]