28288689

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 47996928

約数和(自身を除く): 19708239

約数列:

[1, 3, 11, 13, 23, 33, 39, 47, 61, 69, 141, 143, 183, 253, 299, 429, 517, 611, 671, 759, 793, 897, 1081, 1403, 1551, 1833, 2013, 2379, 2867, 3243, 3289, 4209, 6721, 8601, 8723, 9867, 11891, 14053, 15433, 18239, 20163, 26169, 31537, 35673, 37271, 42159, 46299, 54717, 65941, 94611, 111813, 154583, 197823, 200629, 409981, 463749, 601887, 725351, 857233, 1229943, 2176053, 2571699, 9429563, 28288689]

約数ペア:

[(1, 28288689), (3, 9429563), (11, 2571699), (13, 2176053), (23, 1229943), (33, 857233), (39, 725351), (47, 601887), (61, 463749), (69, 409981), (141, 200629), (143, 197823), (183, 154583), (253, 111813), (299, 94611), (429, 65941), (517, 54717), (611, 46299), (671, 42159), (759, 37271), (793, 35673), (897, 31537), (1081, 26169), (1403, 20163), (1551, 18239), (1833, 15433), (2013, 14053), (2379, 11891), (2867, 9867), (3243, 8723), (3289, 8601), (4209, 6721)]