217199457

素因数分解:

$3^2\times {\mathrm{151}}^1\times {\mathrm{181}}^1\times {\mathrm{883}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 317914688

約数和(自身を除く): 100715231

約数列:

[1, 3, 9, 151, 181, 453, 543, 883, 1359, 1629, 2649, 7947, 27331, 81993, 133333, 159823, 245979, 399999, 479469, 1199997, 1438407, 24133273, 72399819, 217199457]

約数ペア:

[(1, 217199457), (3, 72399819), (9, 24133273), (151, 1438407), (181, 1199997), (453, 479469), (543, 399999), (883, 245979), (1359, 159823), (1629, 133333), (2649, 81993), (7947, 27331)]