28628649

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23917}}^1$

素因数の和:23949

約数の個数: 24

約数和(自身を含む): 49749440

約数和(自身を除く): 21120791

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 23917, 71751, 167419, 215253, 454423, 502257, 1363269, 1506771, 3180961, 4089807, 9542883, 28628649]

約数ペア:

[(1, 28628649), (3, 9542883), (7, 4089807), (9, 3180961), (19, 1506771), (21, 1363269), (57, 502257), (63, 454423), (133, 215253), (171, 167419), (399, 71751), (1197, 23917)]