21837908

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{431}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 39191040

約数和(自身を除く): 17353132

約数列:

[1, 2, 4, 53, 106, 212, 239, 431, 478, 862, 956, 1724, 12667, 22843, 25334, 45686, 50668, 91372, 103009, 206018, 412036, 5459477, 10918954, 21837908]

約数ペア:

[(1, 21837908), (2, 10918954), (4, 5459477), (53, 412036), (106, 206018), (212, 103009), (239, 91372), (431, 50668), (478, 45686), (862, 25334), (956, 22843), (1724, 12667)]