28556213

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 7247947

約数列:

[1, 7, 29, 41, 47, 73, 203, 287, 329, 511, 1189, 1363, 1927, 2117, 2993, 3431, 8323, 9541, 13489, 14819, 20951, 24017, 55883, 86797, 99499, 140671, 391181, 607579, 696493, 984697, 4079459, 28556213]

約数ペア:

[(1, 28556213), (7, 4079459), (29, 984697), (41, 696493), (47, 607579), (73, 391181), (203, 140671), (287, 99499), (329, 86797), (511, 55883), (1189, 24017), (1363, 20951), (1927, 14819), (2117, 13489), (2993, 9541), (3431, 8323)]