20473916

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:326

約数の個数: 36

約数和(自身を含む): 38682000

約数和(自身を除く): 18208084

約数列:

[1, 2, 4, 17, 34, 68, 89, 178, 199, 289, 356, 398, 578, 796, 1156, 1513, 3026, 3383, 6052, 6766, 13532, 17711, 25721, 35422, 51442, 57511, 70844, 102884, 115022, 230044, 301087, 602174, 1204348, 5118479, 10236958, 20473916]

約数ペア:

[(1, 20473916), (2, 10236958), (4, 5118479), (17, 1204348), (34, 602174), (68, 301087), (89, 230044), (178, 115022), (199, 102884), (289, 70844), (356, 57511), (398, 51442), (578, 35422), (796, 25721), (1156, 17711), (1513, 13532), (3026, 6766), (3383, 6052)]