21363152

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{78541}}^1$

素因数の和:78566

約数の個数: 20

約数和(自身を含む): 43826436

約数和(自身を除く): 22463284

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 78541, 157082, 314164, 628328, 1256656, 1335197, 2670394, 5340788, 10681576, 21363152]

約数ペア:

[(1, 21363152), (2, 10681576), (4, 5340788), (8, 2670394), (16, 1335197), (17, 1256656), (34, 628328), (68, 314164), (136, 157082), (272, 78541)]