128668893

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{16477}}^1$

素因数の和:16636

約数の個数: 16

約数和(自身を含む): 181917120

約数和(自身を除く): 53248227

約数列:

[1, 3, 19, 57, 137, 411, 2603, 7809, 16477, 49431, 313063, 939189, 2257349, 6772047, 42889631, 128668893]

約数ペア:

[(1, 128668893), (3, 42889631), (19, 6772047), (57, 2257349), (137, 939189), (411, 313063), (2603, 49431), (7809, 16477)]