389968313

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1723}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 471686400

約数和(自身を除く): 81718087

約数列:

[1, 7, 31, 49, 149, 217, 1043, 1519, 1723, 4619, 7301, 12061, 32333, 53413, 84427, 226331, 256727, 373891, 1797089, 2617237, 7958537, 12579623, 55709759, 389968313]

約数ペア:

[(1, 389968313), (7, 55709759), (31, 12579623), (49, 7958537), (149, 2617237), (217, 1797089), (1043, 373891), (1519, 256727), (1723, 226331), (4619, 84427), (7301, 53413), (12061, 32333)]