19974028

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{1091}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 36691200

約数和(自身を除く): 16717172

約数列:

[1, 2, 4, 23, 46, 92, 199, 398, 796, 1091, 2182, 4364, 4577, 9154, 18308, 25093, 50186, 100372, 217109, 434218, 868436, 4993507, 9987014, 19974028]

約数ペア:

[(1, 19974028), (2, 9987014), (4, 4993507), (23, 868436), (46, 434218), (92, 217109), (199, 100372), (398, 50186), (796, 25093), (1091, 18308), (2182, 9154), (4364, 4577)]