21305176

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1301}}^1$

素因数の和:1419

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 20879624

約数列:

[1, 2, 4, 8, 23, 46, 89, 92, 178, 184, 356, 712, 1301, 2047, 2602, 4094, 5204, 8188, 10408, 16376, 29923, 59846, 115789, 119692, 231578, 239384, 463156, 926312, 2663147, 5326294, 10652588, 21305176]

約数ペア:

[(1, 21305176), (2, 10652588), (4, 5326294), (8, 2663147), (23, 926312), (46, 463156), (89, 239384), (92, 231578), (178, 119692), (184, 115789), (356, 59846), (712, 29923), (1301, 16376), (2047, 10408), (2602, 8188), (4094, 5204)]