639253839

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{105331}}^1$

素因数の和:105375

約数の個数: 24

約数和(自身を含む): 1034781568

約数和(自身を除く): 395527729

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 2023, 6069, 105331, 315993, 737317, 1790627, 2211951, 5371881, 12534389, 30440659, 37603167, 91321977, 213084613, 639253839]

約数ペア:

[(1, 639253839), (3, 213084613), (7, 91321977), (17, 37603167), (21, 30440659), (51, 12534389), (119, 5371881), (289, 2211951), (357, 1790627), (867, 737317), (2023, 315993), (6069, 105331)]