21623720

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2801}}^1$

素因数の和:3005

約数の個数: 32

約数和(自身を含む): 48922920

約数和(自身を除く): 27299200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 2801, 3860, 5602, 7720, 11204, 14005, 22408, 28010, 56020, 112040, 540593, 1081186, 2162372, 2702965, 4324744, 5405930, 10811860, 21623720]

約数ペア:

[(1, 21623720), (2, 10811860), (4, 5405930), (5, 4324744), (8, 2702965), (10, 2162372), (20, 1081186), (40, 540593), (193, 112040), (386, 56020), (772, 28010), (965, 22408), (1544, 14005), (1930, 11204), (2801, 7720), (3860, 5602)]