21047784

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{16547}}^1$

素因数の和:16609

約数の個数: 32

約数和(自身を含む): 53615520

約数和(自身を除く): 32567736

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636, 1272, 16547, 33094, 49641, 66188, 99282, 132376, 198564, 397128, 876991, 1753982, 2630973, 3507964, 5261946, 7015928, 10523892, 21047784]

約数ペア:

[(1, 21047784), (2, 10523892), (3, 7015928), (4, 5261946), (6, 3507964), (8, 2630973), (12, 1753982), (24, 876991), (53, 397128), (106, 198564), (159, 132376), (212, 99282), (318, 66188), (424, 49641), (636, 33094), (1272, 16547)]