21940778

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 36345024

約数和(自身を除く): 14404246

約数列:

[1, 2, 17, 34, 37, 74, 107, 163, 214, 326, 629, 1258, 1819, 2771, 3638, 3959, 5542, 6031, 7918, 12062, 17441, 34882, 67303, 102527, 134606, 205054, 296497, 592994, 645317, 1290634, 10970389, 21940778]

約数ペア:

[(1, 21940778), (2, 10970389), (17, 1290634), (34, 645317), (37, 592994), (74, 296497), (107, 205054), (163, 134606), (214, 102527), (326, 67303), (629, 34882), (1258, 17441), (1819, 12062), (2771, 7918), (3638, 6031), (3959, 5542)]