18640435723

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2689}}^1\times {\mathrm{4481}}^1$

素因数の和:7207

約数の個数: 32

約数和(自身を含む): 24306065280

約数和(自身を除く): 5665629557

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 2689, 4481, 18823, 31367, 34957, 45713, 58253, 76177, 244699, 319991, 407771, 533239, 594269, 990301, 4159883, 6932107, 12049409, 84345863, 156642317, 204839953, 1096496219, 1433879671, 2662919389, 18640435723]

約数ペア:

[(1, 18640435723), (7, 2662919389), (13, 1433879671), (17, 1096496219), (91, 204839953), (119, 156642317), (221, 84345863), (1547, 12049409), (2689, 6932107), (4481, 4159883), (18823, 990301), (31367, 594269), (34957, 533239), (45713, 407771), (58253, 319991), (76177, 244699)]