255591207

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{20897}}^1$

素因数の和:21060

約数の個数: 20

約数和(自身を含む): 384356016

約数和(自身を除く): 128764809

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 4077, 12231, 20897, 62691, 188073, 564219, 1692657, 3155447, 9466341, 28399023, 85197069, 255591207]

約数ペア:

[(1, 255591207), (3, 85197069), (9, 28399023), (27, 9466341), (81, 3155447), (151, 1692657), (453, 564219), (1359, 188073), (4077, 62691), (12231, 20897)]