18991245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13913}}^1$

素因数の和:13941

約数の個数: 32

約数和(自身を含む): 37400832

約数和(自身を除く): 18409587

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 13913, 41739, 69565, 97391, 180869, 208695, 292173, 486955, 542607, 904345, 1266083, 1460865, 2713035, 3798249, 6330415, 18991245]

約数ペア:

[(1, 18991245), (3, 6330415), (5, 3798249), (7, 2713035), (13, 1460865), (15, 1266083), (21, 904345), (35, 542607), (39, 486955), (65, 292173), (91, 208695), (105, 180869), (195, 97391), (273, 69565), (455, 41739), (1365, 13913)]