28437927

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{271}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 45957120

約数和(自身を除く): 17519193

約数列:

[1, 3, 7, 19, 21, 57, 133, 263, 271, 399, 789, 813, 1841, 1897, 4997, 5149, 5523, 5691, 14991, 15447, 34979, 36043, 71273, 104937, 108129, 213819, 498911, 1354187, 1496733, 4062561, 9479309, 28437927]

約数ペア:

[(1, 28437927), (3, 9479309), (7, 4062561), (19, 1496733), (21, 1354187), (57, 498911), (133, 213819), (263, 108129), (271, 104937), (399, 71273), (789, 36043), (813, 34979), (1841, 15447), (1897, 14991), (4997, 5691), (5149, 5523)]