21016275

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40031}}^1$

素因数の和:40051

約数の個数: 24

約数和(自身を含む): 39711744

約数和(自身を除く): 18695469

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40031, 120093, 200155, 280217, 600465, 840651, 1000775, 1401085, 3002325, 4203255, 7005425, 21016275]

約数ペア:

[(1, 21016275), (3, 7005425), (5, 4203255), (7, 3002325), (15, 1401085), (21, 1000775), (25, 840651), (35, 600465), (75, 280217), (105, 200155), (175, 120093), (525, 40031)]