19681199285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{568903}}^1$

素因数の和:568973

約数の個数: 32

約数和(自身を含む): 28017384192

約数和(自身を除く): 8336184907

約数列:

[1, 5, 11, 17, 37, 55, 85, 185, 187, 407, 629, 935, 2035, 3145, 6919, 34595, 568903, 2844515, 6257933, 9671351, 21049411, 31289665, 48356755, 105247055, 106384861, 231543521, 357839987, 531924305, 1157717605, 1789199935, 3936239857, 19681199285]

約数ペア:

[(1, 19681199285), (5, 3936239857), (11, 1789199935), (17, 1157717605), (37, 531924305), (55, 357839987), (85, 231543521), (185, 106384861), (187, 105247055), (407, 48356755), (629, 31289665), (935, 21049411), (2035, 9671351), (3145, 6257933), (6919, 2844515), (34595, 568903)]