21917511

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31627}}^1$

素因数の和:31651

約数の個数: 24

約数和(自身を含む): 39471744

約数和(自身を除く): 17554233

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 31627, 94881, 221389, 284643, 347897, 664167, 1043691, 1992501, 2435279, 3131073, 7305837, 21917511]

約数ペア:

[(1, 21917511), (3, 7305837), (7, 3131073), (9, 2435279), (11, 1992501), (21, 1043691), (33, 664167), (63, 347897), (77, 284643), (99, 221389), (231, 94881), (693, 31627)]