20273967

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 35223552

約数和(自身を除く): 14949585

約数列:

[1, 3, 7, 9, 21, 41, 47, 63, 123, 141, 167, 287, 329, 369, 423, 501, 861, 987, 1169, 1503, 1927, 2583, 2961, 3507, 5781, 6847, 7849, 10521, 13489, 17343, 20541, 23547, 40467, 47929, 54943, 61623, 70641, 121401, 143787, 164829, 321809, 431361, 494487, 965427, 2252663, 2896281, 6757989, 20273967]

約数ペア:

[(1, 20273967), (3, 6757989), (7, 2896281), (9, 2252663), (21, 965427), (41, 494487), (47, 431361), (63, 321809), (123, 164829), (141, 143787), (167, 121401), (287, 70641), (329, 61623), (369, 54943), (423, 47929), (501, 40467), (861, 23547), (987, 20541), (1169, 17343), (1503, 13489), (1927, 10521), (2583, 7849), (2961, 6847), (3507, 5781)]