21273424

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32429}}^1$

素因数の和:32478

約数の個数: 20

約数和(自身を含む): 42223860

約数和(自身を除く): 20950436

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32429, 64858, 129716, 259432, 518864, 1329589, 2659178, 5318356, 10636712, 21273424]

約数ペア:

[(1, 21273424), (2, 10636712), (4, 5318356), (8, 2659178), (16, 1329589), (41, 518864), (82, 259432), (164, 129716), (328, 64858), (656, 32429)]