21994396

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{1787}}^1$

素因数の和:1989

約数の個数: 24

約数和(自身を含む): 41002416

約数和(自身を除く): 19008020

約数列:

[1, 2, 4, 17, 34, 68, 181, 362, 724, 1787, 3077, 3574, 6154, 7148, 12308, 30379, 60758, 121516, 323447, 646894, 1293788, 5498599, 10997198, 21994396]

約数ペア:

[(1, 21994396), (2, 10997198), (4, 5498599), (17, 1293788), (34, 646894), (68, 323447), (181, 121516), (362, 60758), (724, 30379), (1787, 12308), (3077, 7148), (3574, 6154)]