64403521

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^2$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 83872320

約数和(自身を除く): 19468799

約数列:

[1, 7, 13, 19, 91, 133, 193, 247, 1351, 1729, 2509, 3667, 17563, 25669, 37249, 47671, 260743, 333697, 484237, 707731, 3389659, 4954117, 9200503, 64403521]

約数ペア:

[(1, 64403521), (7, 9200503), (13, 4954117), (19, 3389659), (91, 707731), (133, 484237), (193, 333697), (247, 260743), (1351, 47671), (1729, 37249), (2509, 25669), (3667, 17563)]