646782129

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{971}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 1089728640

約数和(自身を除く): 442946511

約数列:

[1, 3, 7, 9, 21, 63, 97, 109, 291, 327, 679, 763, 873, 971, 981, 2037, 2289, 2913, 6111, 6797, 6867, 8739, 10573, 20391, 31719, 61173, 74011, 94187, 95157, 105839, 222033, 282561, 317517, 659309, 666099, 740873, 847683, 952551, 1977927, 2222619, 5933781, 6667857, 10266383, 30799149, 71864681, 92397447, 215594043, 646782129]

約数ペア:

[(1, 646782129), (3, 215594043), (7, 92397447), (9, 71864681), (21, 30799149), (63, 10266383), (97, 6667857), (109, 5933781), (291, 2222619), (327, 1977927), (679, 952551), (763, 847683), (873, 740873), (971, 666099), (981, 659309), (2037, 317517), (2289, 282561), (2913, 222033), (6111, 105839), (6797, 95157), (6867, 94187), (8739, 74011), (10573, 61173), (20391, 31719)]