21283875

素因数分解:

$3^2\times 5^3\times {\mathrm{18919}}^1$

素因数の和:18940

約数の個数: 24

約数和(自身を含む): 38369760

約数和(自身を除く): 17085885

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 18919, 56757, 94595, 170271, 283785, 472975, 851355, 1418925, 2364875, 4256775, 7094625, 21283875]

約数ペア:

[(1, 21283875), (3, 7094625), (5, 4256775), (9, 2364875), (15, 1418925), (25, 851355), (45, 472975), (75, 283785), (125, 170271), (225, 94595), (375, 56757), (1125, 18919)]