20949304

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4969}}^1$

素因数の和:5023

約数の個数: 32

約数和(自身を含む): 42940800

約数和(自身を除く): 21991496

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 4969, 9938, 19876, 39752, 84473, 154039, 168946, 308078, 337892, 616156, 675784, 1232312, 2618663, 5237326, 10474652, 20949304]

約数ペア:

[(1, 20949304), (2, 10474652), (4, 5237326), (8, 2618663), (17, 1232312), (31, 675784), (34, 616156), (62, 337892), (68, 308078), (124, 168946), (136, 154039), (248, 84473), (527, 39752), (1054, 19876), (2108, 9938), (4216, 4969)]