21096918

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{281}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 47423376

約数和(自身を除く): 26326458

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 97, 129, 194, 258, 281, 291, 387, 562, 582, 774, 843, 873, 1686, 1746, 2529, 4171, 5058, 8342, 12083, 12513, 24166, 25026, 27257, 36249, 37539, 54514, 72498, 75078, 81771, 108747, 163542, 217494, 245313, 490626, 1172051, 2344102, 3516153, 7032306, 10548459, 21096918]

約数ペア:

[(1, 21096918), (2, 10548459), (3, 7032306), (6, 3516153), (9, 2344102), (18, 1172051), (43, 490626), (86, 245313), (97, 217494), (129, 163542), (194, 108747), (258, 81771), (281, 75078), (291, 72498), (387, 54514), (562, 37539), (582, 36249), (774, 27257), (843, 25026), (873, 24166), (1686, 12513), (1746, 12083), (2529, 8342), (4171, 5058)]