21987234

素因数分解:

$2^1\times 3^3\times {\mathrm{41}}^1\times {\mathrm{9931}}^1$

素因数の和:9983

約数の個数: 32

約数和(自身を含む): 50057280

約数和(自身を除く): 28070046

約数列:

[1, 2, 3, 6, 9, 18, 27, 41, 54, 82, 123, 246, 369, 738, 1107, 2214, 9931, 19862, 29793, 59586, 89379, 178758, 268137, 407171, 536274, 814342, 1221513, 2443026, 3664539, 7329078, 10993617, 21987234]

約数ペア:

[(1, 21987234), (2, 10993617), (3, 7329078), (6, 3664539), (9, 2443026), (18, 1221513), (27, 814342), (41, 536274), (54, 407171), (82, 268137), (123, 178758), (246, 89379), (369, 59586), (738, 29793), (1107, 19862), (2214, 9931)]