21050415

素因数分解:

$3^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{739}}^1$

素因数の和:964

約数の個数: 32

約数和(自身を含む): 37651200

約数和(自身を除く): 16600785

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 211, 633, 739, 1055, 1899, 2217, 3165, 3695, 5697, 6651, 9495, 11085, 19953, 28485, 33255, 99765, 155929, 467787, 779645, 1403361, 2338935, 4210083, 7016805, 21050415]

約数ペア:

[(1, 21050415), (3, 7016805), (5, 4210083), (9, 2338935), (15, 1403361), (27, 779645), (45, 467787), (135, 155929), (211, 99765), (633, 33255), (739, 28485), (1055, 19953), (1899, 11085), (2217, 9495), (3165, 6651), (3695, 5697)]