21872061

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1783}}^1$

素因数の和:1865

約数の個数: 24

約数和(自身を含む): 33396480

約数和(自身を除く): 11524419

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 1783, 4089, 5349, 12267, 16047, 51707, 83801, 155121, 251403, 465363, 754209, 2430229, 7290687, 21872061]

約数ペア:

[(1, 21872061), (3, 7290687), (9, 2430229), (29, 754209), (47, 465363), (87, 251403), (141, 155121), (261, 83801), (423, 51707), (1363, 16047), (1783, 12267), (4089, 5349)]