21443885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5867}}^1$

素因数の和:5932

約数の個数: 16

約数和(自身を含む): 27884736

約数和(自身を除く): 6440851

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5867, 29335, 99739, 252281, 498695, 1261405, 4288777, 21443885]

約数ペア:

[(1, 21443885), (5, 4288777), (17, 1261405), (43, 498695), (85, 252281), (215, 99739), (731, 29335), (3655, 5867)]