254331021

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 406099008

約数和(自身を除く): 151767987

約数列:

[1, 3, 7, 21, 49, 61, 113, 147, 183, 251, 339, 427, 753, 791, 1281, 1757, 2373, 2989, 5271, 5537, 6893, 8967, 12299, 15311, 16611, 20679, 28363, 36897, 45933, 48251, 85089, 107177, 144753, 198541, 321531, 337757, 595623, 750239, 1013271, 1389787, 1730143, 2250717, 4169361, 5190429, 12111001, 36333003, 84777007, 254331021]

約数ペア:

[(1, 254331021), (3, 84777007), (7, 36333003), (21, 12111001), (49, 5190429), (61, 4169361), (113, 2250717), (147, 1730143), (183, 1389787), (251, 1013271), (339, 750239), (427, 595623), (753, 337757), (791, 321531), (1281, 198541), (1757, 144753), (2373, 107177), (2989, 85089), (5271, 48251), (5537, 45933), (6893, 36897), (8967, 28363), (12299, 20679), (15311, 16611)]