21489963

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{1117}}^1$

素因数の和:1195

約数の個数: 24

約数和(自身を含む): 32117904

約数和(自身を除く): 10627941

約数列:

[1, 3, 11, 33, 53, 121, 159, 363, 583, 1117, 1749, 3351, 6413, 12287, 19239, 36861, 59201, 135157, 177603, 405471, 651211, 1953633, 7163321, 21489963]

約数ペア:

[(1, 21489963), (3, 7163321), (11, 1953633), (33, 651211), (53, 405471), (121, 177603), (159, 135157), (363, 59201), (583, 36861), (1117, 19239), (1749, 12287), (3351, 6413)]