21253498

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{607}}^1$

素因数の和:718

約数の個数: 32

約数和(自身を含む): 37997568

約数和(自身を除く): 16744070

約数列:

[1, 2, 7, 14, 41, 61, 82, 122, 287, 427, 574, 607, 854, 1214, 2501, 4249, 5002, 8498, 17507, 24887, 35014, 37027, 49774, 74054, 174209, 259189, 348418, 518378, 1518107, 3036214, 10626749, 21253498]

約数ペア:

[(1, 21253498), (2, 10626749), (7, 3036214), (14, 1518107), (41, 518378), (61, 348418), (82, 259189), (122, 174209), (287, 74054), (427, 49774), (574, 37027), (607, 35014), (854, 24887), (1214, 17507), (2501, 8498), (4249, 5002)]