393970551

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1801}}^1$

素因数の和:1967

約数の個数: 32

約数和(自身を含む): 581253120

約数和(自身を除く): 187282569

約数列:

[1, 3, 13, 39, 71, 79, 213, 237, 923, 1027, 1801, 2769, 3081, 5403, 5609, 16827, 23413, 70239, 72917, 127871, 142279, 218751, 383613, 426837, 1662323, 1849627, 4986969, 5548881, 10101809, 30305427, 131323517, 393970551]

約数ペア:

[(1, 393970551), (3, 131323517), (13, 30305427), (39, 10101809), (71, 5548881), (79, 4986969), (213, 1849627), (237, 1662323), (923, 426837), (1027, 383613), (1801, 218751), (2769, 142279), (3081, 127871), (5403, 72917), (5609, 70239), (16827, 23413)]