15921297

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 28354560

約数和(自身を除く): 12433263

約数列:

[1, 3, 7, 9, 19, 21, 47, 57, 63, 133, 141, 171, 283, 329, 399, 423, 849, 893, 987, 1197, 1981, 2547, 2679, 2961, 5377, 5943, 6251, 8037, 13301, 16131, 17829, 18753, 37639, 39903, 48393, 56259, 93107, 112917, 119709, 252719, 279321, 338751, 758157, 837963, 1769033, 2274471, 5307099, 15921297]

約数ペア:

[(1, 15921297), (3, 5307099), (7, 2274471), (9, 1769033), (19, 837963), (21, 758157), (47, 338751), (57, 279321), (63, 252719), (133, 119709), (141, 112917), (171, 93107), (283, 56259), (329, 48393), (399, 39903), (423, 37639), (849, 18753), (893, 17829), (987, 16131), (1197, 13301), (1981, 8037), (2547, 6251), (2679, 5943), (2961, 5377)]