19889507

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:179

約数の個数: 32

約数和(自身を含む): 24551424

約数和(自身を除く): 4661917

約数列:

[1, 11, 17, 31, 47, 73, 187, 341, 517, 527, 799, 803, 1241, 1457, 2263, 3431, 5797, 8789, 13651, 16027, 24769, 24893, 37741, 38471, 58327, 106361, 272459, 423181, 641597, 1169971, 1808137, 19889507]

約数ペア:

[(1, 19889507), (11, 1808137), (17, 1169971), (31, 641597), (47, 423181), (73, 272459), (187, 106361), (341, 58327), (517, 38471), (527, 37741), (799, 24893), (803, 24769), (1241, 16027), (1457, 13651), (2263, 8789), (3431, 5797)]