21463180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63127}}^1$

素因数の和:63153

約数の個数: 24

約数和(自身を含む): 47724768

約数和(自身を除く): 26261588

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63127, 126254, 252508, 315635, 631270, 1073159, 1262540, 2146318, 4292636, 5365795, 10731590, 21463180]

約数ペア:

[(1, 21463180), (2, 10731590), (4, 5365795), (5, 4292636), (10, 2146318), (17, 1262540), (20, 1073159), (34, 631270), (68, 315635), (85, 252508), (170, 126254), (340, 63127)]