21330760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{48479}}^1$

素因数の和:48501

約数の個数: 32

約数和(自身を含む): 52358400

約数和(自身を除く): 31027640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 48479, 96958, 193916, 242395, 387832, 484790, 533269, 969580, 1066538, 1939160, 2133076, 2666345, 4266152, 5332690, 10665380, 21330760]

約数ペア:

[(1, 21330760), (2, 10665380), (4, 5332690), (5, 4266152), (8, 2666345), (10, 2133076), (11, 1939160), (20, 1066538), (22, 969580), (40, 533269), (44, 484790), (55, 387832), (88, 242395), (110, 193916), (220, 96958), (440, 48479)]