21284226

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 47814624

約数和(自身を除く): 26530398

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 107, 129, 214, 257, 258, 321, 387, 514, 642, 771, 774, 963, 1542, 1926, 2313, 4601, 4626, 9202, 11051, 13803, 22102, 27499, 27606, 33153, 41409, 54998, 66306, 82497, 82818, 99459, 164994, 198918, 247491, 494982, 1182457, 2364914, 3547371, 7094742, 10642113, 21284226]

約数ペア:

[(1, 21284226), (2, 10642113), (3, 7094742), (6, 3547371), (9, 2364914), (18, 1182457), (43, 494982), (86, 247491), (107, 198918), (129, 164994), (214, 99459), (257, 82818), (258, 82497), (321, 66306), (387, 54998), (514, 41409), (642, 33153), (771, 27606), (774, 27499), (963, 22102), (1542, 13803), (1926, 11051), (2313, 9202), (4601, 4626)]