18883906209

素因数分解:

$3^2\times 7^2\times {\mathrm{601}}^1\times {\mathrm{71249}}^1$

素因数の和:71870

約数の個数: 36

約数和(自身を含む): 31783342500

約数和(自身を除く): 12899436291

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 601, 1803, 4207, 5409, 12621, 29449, 37863, 71249, 88347, 213747, 265041, 498743, 641241, 1496229, 3491201, 4488687, 10473603, 31420809, 42820649, 128461947, 299744543, 385385841, 899233629, 2098211801, 2697700887, 6294635403, 18883906209]

約数ペア:

[(1, 18883906209), (3, 6294635403), (7, 2697700887), (9, 2098211801), (21, 899233629), (49, 385385841), (63, 299744543), (147, 128461947), (441, 42820649), (601, 31420809), (1803, 10473603), (4207, 4488687), (5409, 3491201), (12621, 1496229), (29449, 641241), (37863, 498743), (71249, 265041), (88347, 213747)]