21039180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3217}}^1$

素因数の和:3338

約数の個数: 48

約数和(自身を含む): 59468640

約数和(自身を除く): 38429460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3217, 3270, 6434, 6540, 9651, 12868, 16085, 19302, 32170, 38604, 48255, 64340, 96510, 193020, 350653, 701306, 1051959, 1402612, 1753265, 2103918, 3506530, 4207836, 5259795, 7013060, 10519590, 21039180]

約数ペア:

[(1, 21039180), (2, 10519590), (3, 7013060), (4, 5259795), (5, 4207836), (6, 3506530), (10, 2103918), (12, 1753265), (15, 1402612), (20, 1051959), (30, 701306), (60, 350653), (109, 193020), (218, 96510), (327, 64340), (436, 48255), (545, 38604), (654, 32170), (1090, 19302), (1308, 16085), (1635, 12868), (2180, 9651), (3217, 6540), (3270, 6434)]