31781187

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1097}}^1$

素因数の和:1172

約数の個数: 32

約数和(自身を含む): 50068800

約数和(自身を除く): 18287613

約数列:

[1, 3, 9, 27, 29, 37, 87, 111, 261, 333, 783, 999, 1073, 1097, 3219, 3291, 9657, 9873, 28971, 29619, 31813, 40589, 95439, 121767, 286317, 365301, 858951, 1095903, 1177081, 3531243, 10593729, 31781187]

約数ペア:

[(1, 31781187), (3, 10593729), (9, 3531243), (27, 1177081), (29, 1095903), (37, 858951), (87, 365301), (111, 286317), (261, 121767), (333, 95439), (783, 40589), (999, 31813), (1073, 29619), (1097, 28971), (3219, 9873), (3291, 9657)]