21646519918

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2862539}}^1$

素因数の和:2862759

約数の個数: 16

約数和(自身を含む): 34350480000

約数和(自身を除く): 12703960082

約数列:

[1, 2, 19, 38, 199, 398, 3781, 7562, 2862539, 5725078, 54388241, 108776482, 569645261, 1139290522, 10823259959, 21646519918]

約数ペア:

[(1, 21646519918), (2, 10823259959), (19, 1139290522), (38, 569645261), (199, 108776482), (398, 54388241), (3781, 5725078), (7562, 2862539)]