28676739

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 51480576

約数和(自身を除く): 22803837

約数列:

[1, 3, 7, 13, 17, 21, 37, 39, 51, 91, 111, 119, 167, 221, 259, 273, 357, 481, 501, 629, 663, 777, 1169, 1443, 1547, 1887, 2171, 2839, 3367, 3507, 4403, 4641, 6179, 6513, 8177, 8517, 10101, 13209, 15197, 18537, 19873, 24531, 36907, 43253, 45591, 57239, 59619, 80327, 105043, 110721, 129759, 171717, 240981, 258349, 315129, 562289, 735301, 775047, 1365559, 1686867, 2205903, 4096677, 9558913, 28676739]

約数ペア:

[(1, 28676739), (3, 9558913), (7, 4096677), (13, 2205903), (17, 1686867), (21, 1365559), (37, 775047), (39, 735301), (51, 562289), (91, 315129), (111, 258349), (119, 240981), (167, 171717), (221, 129759), (259, 110721), (273, 105043), (357, 80327), (481, 59619), (501, 57239), (629, 45591), (663, 43253), (777, 36907), (1169, 24531), (1443, 19873), (1547, 18537), (1887, 15197), (2171, 13209), (2839, 10101), (3367, 8517), (3507, 8177), (4403, 6513), (4641, 6179)]