18986799

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 28998144

約数和(自身を除く): 10011345

約数列:

[1, 3, 13, 23, 39, 61, 69, 183, 299, 347, 793, 897, 1041, 1403, 2379, 4209, 4511, 7981, 13533, 18239, 21167, 23943, 54717, 63501, 103753, 275171, 311259, 486841, 825513, 1460523, 6328933, 18986799]

約数ペア:

[(1, 18986799), (3, 6328933), (13, 1460523), (23, 825513), (39, 486841), (61, 311259), (69, 275171), (183, 103753), (299, 63501), (347, 54717), (793, 23943), (897, 21167), (1041, 18239), (1403, 13533), (2379, 7981), (4209, 4511)]