28639233

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{5477}}^1$

素因数の和:5573

約数の個数: 24

約数和(自身を含む): 47855808

約数和(自身を除く): 19216575

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 5229, 5477, 16431, 38339, 49293, 115017, 345051, 454591, 1363773, 3182137, 4091319, 9546411, 28639233]

約数ペア:

[(1, 28639233), (3, 9546411), (7, 4091319), (9, 3182137), (21, 1363773), (63, 454591), (83, 345051), (249, 115017), (581, 49293), (747, 38339), (1743, 16431), (5229, 5477)]