28826553

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{10321}}^1$

素因数の和:10357

約数の個数: 24

約数和(自身を含む): 47068320

約数和(自身を除く): 18241767

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 10321, 30963, 72247, 196099, 216741, 505729, 588297, 1372693, 1517187, 4118079, 9608851, 28826553]

約数ペア:

[(1, 28826553), (3, 9608851), (7, 4118079), (19, 1517187), (21, 1372693), (49, 588297), (57, 505729), (133, 216741), (147, 196099), (399, 72247), (931, 30963), (2793, 10321)]