31443489

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 60535488

約数和(自身を除く): 29091999

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 153, 157, 187, 231, 289, 357, 471, 561, 693, 867, 1071, 1099, 1309, 1413, 1683, 1727, 2023, 2601, 2669, 3179, 3297, 3927, 5181, 6069, 8007, 9537, 9891, 11781, 12089, 15543, 18207, 18683, 22253, 24021, 28611, 29359, 36267, 45373, 56049, 66759, 88077, 108801, 136119, 168147, 200277, 205513, 264231, 317611, 408357, 499103, 616539, 952833, 1497309, 1849617, 2858499, 3493721, 4491927, 10481163, 31443489]

約数ペア:

[(1, 31443489), (3, 10481163), (7, 4491927), (9, 3493721), (11, 2858499), (17, 1849617), (21, 1497309), (33, 952833), (51, 616539), (63, 499103), (77, 408357), (99, 317611), (119, 264231), (153, 205513), (157, 200277), (187, 168147), (231, 136119), (289, 108801), (357, 88077), (471, 66759), (561, 56049), (693, 45373), (867, 36267), (1071, 29359), (1099, 28611), (1309, 24021), (1413, 22253), (1683, 18683), (1727, 18207), (2023, 15543), (2601, 12089), (2669, 11781), (3179, 9891), (3297, 9537), (3927, 8007), (5181, 6069)]