15321999

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3491}}^1$

素因数の和:3531

約数の個数: 32

約数和(自身を含む): 26818560

約数和(自身を除く): 11496561

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 3491, 4389, 10473, 24437, 38401, 66329, 73311, 115203, 198987, 268807, 464303, 729619, 806421, 1392909, 2188857, 5107333, 15321999]

約数ペア:

[(1, 15321999), (3, 5107333), (7, 2188857), (11, 1392909), (19, 806421), (21, 729619), (33, 464303), (57, 268807), (77, 198987), (133, 115203), (209, 73311), (231, 66329), (399, 38401), (627, 24437), (1463, 10473), (3491, 4389)]