21584480

素因数分解:

$2^5\times 5^1\times {\mathrm{313}}^1\times {\mathrm{431}}^1$

素因数の和:759

約数の個数: 48

約数和(自身を含む): 51274944

約数和(自身を除く): 29690464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 313, 431, 626, 862, 1252, 1565, 1724, 2155, 2504, 3130, 3448, 4310, 5008, 6260, 6896, 8620, 10016, 12520, 13792, 17240, 25040, 34480, 50080, 68960, 134903, 269806, 539612, 674515, 1079224, 1349030, 2158448, 2698060, 4316896, 5396120, 10792240, 21584480]

約数ペア:

[(1, 21584480), (2, 10792240), (4, 5396120), (5, 4316896), (8, 2698060), (10, 2158448), (16, 1349030), (20, 1079224), (32, 674515), (40, 539612), (80, 269806), (160, 134903), (313, 68960), (431, 50080), (626, 34480), (862, 25040), (1252, 17240), (1565, 13792), (1724, 12520), (2155, 10016), (2504, 8620), (3130, 6896), (3448, 6260), (4310, 5008)]