20393945

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2593}}^1$

素因数の和:2633

約数の個数: 24

約数和(自身を含む): 28980168

約数和(自身を除く): 8586223

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 2593, 7865, 12965, 28523, 33709, 142615, 168545, 313753, 370799, 1568765, 1853995, 4078789, 20393945]

約数ペア:

[(1, 20393945), (5, 4078789), (11, 1853995), (13, 1568765), (55, 370799), (65, 313753), (121, 168545), (143, 142615), (605, 33709), (715, 28523), (1573, 12965), (2593, 7865)]