21324044

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 23027956

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 89, 172, 178, 199, 301, 356, 398, 602, 623, 796, 1204, 1246, 1393, 2492, 2786, 3827, 5572, 7654, 8557, 15308, 17114, 17711, 26789, 34228, 35422, 53578, 59899, 70844, 107156, 119798, 123977, 239596, 247954, 495908, 761573, 1523146, 3046292, 5331011, 10662022, 21324044]

約数ペア:

[(1, 21324044), (2, 10662022), (4, 5331011), (7, 3046292), (14, 1523146), (28, 761573), (43, 495908), (86, 247954), (89, 239596), (172, 123977), (178, 119798), (199, 107156), (301, 70844), (356, 59899), (398, 53578), (602, 35422), (623, 34228), (796, 26789), (1204, 17711), (1246, 17114), (1393, 15308), (2492, 8557), (2786, 7654), (3827, 5572)]