31428873

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 54221440

約数和(自身を除く): 22792567

約数列:

[1, 3, 7, 9, 21, 37, 63, 97, 111, 139, 259, 291, 333, 417, 679, 777, 873, 973, 1251, 2037, 2331, 2919, 3589, 5143, 6111, 8757, 10767, 13483, 15429, 25123, 32301, 36001, 40449, 46287, 75369, 94381, 108003, 121347, 226107, 283143, 324009, 498871, 849429, 1496613, 3492097, 4489839, 10476291, 31428873]

約数ペア:

[(1, 31428873), (3, 10476291), (7, 4489839), (9, 3492097), (21, 1496613), (37, 849429), (63, 498871), (97, 324009), (111, 283143), (139, 226107), (259, 121347), (291, 108003), (333, 94381), (417, 75369), (679, 46287), (777, 40449), (873, 36001), (973, 32301), (1251, 25123), (2037, 15429), (2331, 13483), (2919, 10767), (3589, 8757), (5143, 6111)]