21903255

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44249}}^1$

素因数の和:44271

約数の個数: 24

約数和(自身を含む): 41418000

約数和(自身を除く): 19514745

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 44249, 132747, 221245, 398241, 486739, 663735, 1460217, 1991205, 2433695, 4380651, 7301085, 21903255]

約数ペア:

[(1, 21903255), (3, 7301085), (5, 4380651), (9, 2433695), (11, 1991205), (15, 1460217), (33, 663735), (45, 486739), (55, 398241), (99, 221245), (165, 132747), (495, 44249)]