21938735

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3709}}^1$

素因数の和:3747

約数の個数: 24

約数和(自身を含む): 32588640

約数和(自身を除く): 10649905

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3709, 5915, 18545, 25963, 48217, 129815, 241085, 337519, 626821, 1687595, 3134105, 4387747, 21938735]

約数ペア:

[(1, 21938735), (5, 4387747), (7, 3134105), (13, 1687595), (35, 626821), (65, 337519), (91, 241085), (169, 129815), (455, 48217), (845, 25963), (1183, 18545), (3709, 5915)]