19720204

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2437}}^1$

素因数の和:2482

約数の個数: 36

約数和(自身を含む): 41914096

約数和(自身を除く): 22193892

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 289, 476, 578, 1156, 2023, 2437, 4046, 4874, 8092, 9748, 17059, 34118, 41429, 68236, 82858, 165716, 290003, 580006, 704293, 1160012, 1408586, 2817172, 4930051, 9860102, 19720204]

約数ペア:

[(1, 19720204), (2, 9860102), (4, 4930051), (7, 2817172), (14, 1408586), (17, 1160012), (28, 704293), (34, 580006), (68, 290003), (119, 165716), (238, 82858), (289, 68236), (476, 41429), (578, 34118), (1156, 17059), (2023, 9748), (2437, 8092), (4046, 4874)]