31580127

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^2$

素因数の和:192

約数の個数: 36

約数和(自身を含む): 49572432

約数和(自身を除く): 17992305

約数列:

[1, 3, 9, 23, 41, 61, 69, 123, 183, 207, 369, 549, 943, 1403, 2501, 2829, 3721, 4209, 7503, 8487, 11163, 12627, 22509, 33489, 57523, 85583, 152561, 172569, 256749, 457683, 517707, 770247, 1373049, 3508903, 10526709, 31580127]

約数ペア:

[(1, 31580127), (3, 10526709), (9, 3508903), (23, 1373049), (41, 770247), (61, 517707), (69, 457683), (123, 256749), (183, 172569), (207, 152561), (369, 85583), (549, 57523), (943, 33489), (1403, 22509), (2501, 12627), (2829, 11163), (3721, 8487), (4209, 7503)]