31235139

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{29663}}^1$

素因数の和:29688

約数の個数: 20

約数和(自身を含む): 50250816

約数和(自身を除く): 19015677

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 29663, 88989, 266967, 385619, 800901, 1156857, 2402703, 3470571, 10411713, 31235139]

約数ペア:

[(1, 31235139), (3, 10411713), (9, 3470571), (13, 2402703), (27, 1156857), (39, 800901), (81, 385619), (117, 266967), (351, 88989), (1053, 29663)]