28328586

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 67326336

約数和(自身を除く): 38997750

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 137, 143, 241, 274, 286, 411, 429, 482, 723, 822, 858, 1446, 1507, 1781, 2651, 3014, 3133, 3562, 4521, 5302, 5343, 6266, 7953, 9042, 9399, 10686, 15906, 18798, 19591, 33017, 34463, 39182, 58773, 66034, 68926, 99051, 103389, 117546, 198102, 206778, 363187, 429221, 726374, 858442, 1089561, 1287663, 2179122, 2575326, 4721431, 9442862, 14164293, 28328586]

約数ペア:

[(1, 28328586), (2, 14164293), (3, 9442862), (6, 4721431), (11, 2575326), (13, 2179122), (22, 1287663), (26, 1089561), (33, 858442), (39, 726374), (66, 429221), (78, 363187), (137, 206778), (143, 198102), (241, 117546), (274, 103389), (286, 99051), (411, 68926), (429, 66034), (482, 58773), (723, 39182), (822, 34463), (858, 33017), (1446, 19591), (1507, 18798), (1781, 15906), (2651, 10686), (3014, 9399), (3133, 9042), (3562, 7953), (4521, 6266), (5302, 5343)]