21386695

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{9043}}^1$

素因数の和:9102

約数の個数: 16

約数和(自身を含む): 28651392

約数和(自身を除く): 7264697

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 9043, 45215, 99473, 388849, 497365, 1944245, 4277339, 21386695]

約数ペア:

[(1, 21386695), (5, 4277339), (11, 1944245), (43, 497365), (55, 388849), (215, 99473), (473, 45215), (2365, 9043)]