21064784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101273}}^1$

素因数の和:101294

約数の個数: 20

約数和(自身を含む): 43952916

約数和(自身を除く): 22888132

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101273, 202546, 405092, 810184, 1316549, 1620368, 2633098, 5266196, 10532392, 21064784]

約数ペア:

[(1, 21064784), (2, 10532392), (4, 5266196), (8, 2633098), (13, 1620368), (16, 1316549), (26, 810184), (52, 405092), (104, 202546), (208, 101273)]