20129121873

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{72173}}^1$

素因数の和:72438

約数の個数: 48

約数和(自身を含む): 35128529280

約数和(自身を除く): 14999407407

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 233, 399, 699, 1197, 1631, 2097, 4427, 4893, 13281, 14679, 30989, 39843, 72173, 92967, 216519, 278901, 505211, 649557, 1371287, 1515633, 4113861, 4546899, 9599009, 12341583, 16816309, 28797027, 50448927, 86391081, 117714163, 151346781, 319509871, 353142489, 958529613, 1059427467, 2236569097, 2875588839, 6709707291, 20129121873]

約数ペア:

[(1, 20129121873), (3, 6709707291), (7, 2875588839), (9, 2236569097), (19, 1059427467), (21, 958529613), (57, 353142489), (63, 319509871), (133, 151346781), (171, 117714163), (233, 86391081), (399, 50448927), (699, 28797027), (1197, 16816309), (1631, 12341583), (2097, 9599009), (4427, 4546899), (4893, 4113861), (13281, 1515633), (14679, 1371287), (30989, 649557), (39843, 505211), (72173, 278901), (92967, 216519)]