18405908

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1217}}^1$

素因数の和:1439

約数の個数: 24

約数和(自身を含む): 34104000

約数和(自身を除く): 15698092

約数列:

[1, 2, 4, 19, 38, 76, 199, 398, 796, 1217, 2434, 3781, 4868, 7562, 15124, 23123, 46246, 92492, 242183, 484366, 968732, 4601477, 9202954, 18405908]

約数ペア:

[(1, 18405908), (2, 9202954), (4, 4601477), (19, 968732), (38, 484366), (76, 242183), (199, 92492), (398, 46246), (796, 23123), (1217, 15124), (2434, 7562), (3781, 4868)]