21950621

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 29756160

約数和(自身を除く): 7805539

約数列:

[1, 7, 11, 17, 41, 77, 119, 187, 287, 409, 451, 697, 1309, 2863, 3157, 4499, 4879, 6953, 7667, 16769, 31493, 48671, 53669, 76483, 117383, 184459, 285073, 535381, 1291213, 1995511, 3135803, 21950621]

約数ペア:

[(1, 21950621), (7, 3135803), (11, 1995511), (17, 1291213), (41, 535381), (77, 285073), (119, 184459), (187, 117383), (287, 76483), (409, 53669), (451, 48671), (697, 31493), (1309, 16769), (2863, 7667), (3157, 6953), (4499, 4879)]