257258349

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{53831}}^1$

素因数の和:53902

約数の個数: 20

約数和(自身を含む): 390820320

約数和(自身を除く): 133561971

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4779, 53831, 161493, 484479, 1453437, 3176029, 4360311, 9528087, 28584261, 85752783, 257258349]

約数ペア:

[(1, 257258349), (3, 85752783), (9, 28584261), (27, 9528087), (59, 4360311), (81, 3176029), (177, 1453437), (531, 484479), (1593, 161493), (4779, 53831)]