19788363

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 34384896

約数和(自身を除く): 14596533

約数列:

[1, 3, 7, 9, 21, 41, 47, 63, 123, 141, 163, 287, 329, 369, 423, 489, 861, 987, 1141, 1467, 1927, 2583, 2961, 3423, 5781, 6683, 7661, 10269, 13489, 17343, 20049, 22983, 40467, 46781, 53627, 60147, 68949, 121401, 140343, 160881, 314101, 421029, 482643, 942303, 2198707, 2826909, 6596121, 19788363]

約数ペア:

[(1, 19788363), (3, 6596121), (7, 2826909), (9, 2198707), (21, 942303), (41, 482643), (47, 421029), (63, 314101), (123, 160881), (141, 140343), (163, 121401), (287, 68949), (329, 60147), (369, 53627), (423, 46781), (489, 40467), (861, 22983), (987, 20049), (1141, 17343), (1467, 13489), (1927, 10269), (2583, 7661), (2961, 6683), (3423, 5781)]