620379

素因数分解:

$3^6\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:78

約数の個数: 28

約数和(自身を含む): 996816

約数和(自身を除く): 376437

約数列:

[1, 3, 9, 23, 27, 37, 69, 81, 111, 207, 243, 333, 621, 729, 851, 999, 1863, 2553, 2997, 5589, 7659, 8991, 16767, 22977, 26973, 68931, 206793, 620379]

約数ペア:

[(1, 620379), (3, 206793), (9, 68931), (23, 26973), (27, 22977), (37, 16767), (69, 8991), (81, 7659), (111, 5589), (207, 2997), (243, 2553), (333, 1863), (621, 999), (729, 851)]