123731881

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1907}}^1$

素因数の和:1981

約数の個数: 32

約数和(自身を含む): 164118528

約数和(自身を除く): 40386647

約数列:

[1, 7, 13, 23, 31, 91, 161, 217, 299, 403, 713, 1907, 2093, 2821, 4991, 9269, 13349, 24791, 43861, 59117, 64883, 173537, 307027, 413819, 570193, 768521, 1359691, 3991351, 5379647, 9517837, 17675983, 123731881]

約数ペア:

[(1, 123731881), (7, 17675983), (13, 9517837), (23, 5379647), (31, 3991351), (91, 1359691), (161, 768521), (217, 570193), (299, 413819), (403, 307027), (713, 173537), (1907, 64883), (2093, 59117), (2821, 43861), (4991, 24791), (9269, 13349)]