21556896

素因数分解:

$2^5\times 3^1\times {\mathrm{431}}^1\times {\mathrm{521}}^1$

素因数の和:965

約数の個数: 48

約数和(自身を含む): 56827008

約数和(自身を除く): 35270112

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 431, 521, 862, 1042, 1293, 1563, 1724, 2084, 2586, 3126, 3448, 4168, 5172, 6252, 6896, 8336, 10344, 12504, 13792, 16672, 20688, 25008, 41376, 50016, 224551, 449102, 673653, 898204, 1347306, 1796408, 2694612, 3592816, 5389224, 7185632, 10778448, 21556896]

約数ペア:

[(1, 21556896), (2, 10778448), (3, 7185632), (4, 5389224), (6, 3592816), (8, 2694612), (12, 1796408), (16, 1347306), (24, 898204), (32, 673653), (48, 449102), (96, 224551), (431, 50016), (521, 41376), (862, 25008), (1042, 20688), (1293, 16672), (1563, 13792), (1724, 12504), (2084, 10344), (2586, 8336), (3126, 6896), (3448, 6252), (4168, 5172)]