28131194

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 53778816

約数和(自身を除く): 25647622

約数列:

[1, 2, 7, 13, 14, 26, 49, 71, 91, 98, 142, 182, 311, 497, 622, 637, 923, 994, 1274, 1846, 2177, 3479, 4043, 4354, 6461, 6958, 8086, 12922, 15239, 22081, 28301, 30478, 44162, 45227, 56602, 90454, 154567, 198107, 287053, 309134, 396214, 574106, 1081969, 2009371, 2163938, 4018742, 14065597, 28131194]

約数ペア:

[(1, 28131194), (2, 14065597), (7, 4018742), (13, 2163938), (14, 2009371), (26, 1081969), (49, 574106), (71, 396214), (91, 309134), (98, 287053), (142, 198107), (182, 154567), (311, 90454), (497, 56602), (622, 45227), (637, 44162), (923, 30478), (994, 28301), (1274, 22081), (1846, 15239), (2177, 12922), (3479, 8086), (4043, 6958), (4354, 6461)]