21840255

素因数分解:

$3^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{2083}}^1$

素因数の和:2327

約数の個数: 24

約数和(自身を含む): 38037168

約数和(自身を除く): 16196913

約数列:

[1, 3, 5, 9, 15, 45, 233, 699, 1165, 2083, 2097, 3495, 6249, 10415, 10485, 18747, 31245, 93735, 485339, 1456017, 2426695, 4368051, 7280085, 21840255]

約数ペア:

[(1, 21840255), (3, 7280085), (5, 4368051), (9, 2426695), (15, 1456017), (45, 485339), (233, 93735), (699, 31245), (1165, 18747), (2083, 10485), (2097, 10415), (3495, 6249)]