12903261

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 21027840

約数和(自身を除く): 8124579

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 443, 511, 1329, 1387, 1533, 3101, 4161, 8417, 9303, 9709, 25251, 29127, 32339, 58919, 97017, 176757, 226373, 614441, 679119, 1843323, 4301087, 12903261]

約数ペア:

[(1, 12903261), (3, 4301087), (7, 1843323), (19, 679119), (21, 614441), (57, 226373), (73, 176757), (133, 97017), (219, 58919), (399, 32339), (443, 29127), (511, 25251), (1329, 9709), (1387, 9303), (1533, 8417), (3101, 4161)]