21000901275

素因数分解:

$3^2\times 5^2\times {\mathrm{93337339}}^1$

素因数の和:93337355

約数の個数: 18

約数和(自身を含む): 37614948020

約数和(自身を除く): 16614046745

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 93337339, 280012017, 466686695, 840036051, 1400060085, 2333433475, 4200180255, 7000300425, 21000901275]

約数ペア:

[(1, 21000901275), (3, 7000300425), (5, 4200180255), (9, 2333433475), (15, 1400060085), (25, 840036051), (45, 466686695), (75, 280012017), (225, 93337339)]