21778533

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{9343}}^1$

素因数の和:9393

約数の個数: 24

約数和(自身を含む): 36927488

約数和(自身を除く): 15148955

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 9343, 28029, 65401, 84087, 196203, 345691, 588609, 1037073, 2419837, 3111219, 7259511, 21778533]

約数ペア:

[(1, 21778533), (3, 7259511), (7, 3111219), (9, 2419837), (21, 1037073), (37, 588609), (63, 345691), (111, 196203), (259, 84087), (333, 65401), (777, 28029), (2331, 9343)]