28037217

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 42824320

約数和(自身を除く): 14787103

約数列:

[1, 3, 13, 19, 39, 57, 157, 241, 247, 471, 723, 741, 2041, 2983, 3133, 4579, 6123, 8949, 9399, 13737, 37837, 38779, 59527, 113511, 116337, 178581, 491881, 718903, 1475643, 2156709, 9345739, 28037217]

約数ペア:

[(1, 28037217), (3, 9345739), (13, 2156709), (19, 1475643), (39, 718903), (57, 491881), (157, 178581), (241, 116337), (247, 113511), (471, 59527), (723, 38779), (741, 37837), (2041, 13737), (2983, 9399), (3133, 8949), (4579, 6123)]