20991744765

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20281879}}^1$

素因数の和:20281913

約数の個数: 24

約数和(自身を含む): 37967679360

約数和(自身を除く): 16975934595

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20281879, 60845637, 101409395, 182536911, 304228185, 466483217, 912684555, 1399449651, 2332416085, 4198348953, 6997248255, 20991744765]

約数ペア:

[(1, 20991744765), (3, 6997248255), (5, 4198348953), (9, 2332416085), (15, 1399449651), (23, 912684555), (45, 466483217), (69, 304228185), (115, 182536911), (207, 101409395), (345, 60845637), (1035, 20281879)]