21000686696

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{486037}}^1$

素因数の和:486545

約数の個数: 32

約数和(自身を含む): 43043525280

約数和(自身を除く): 22042838584

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 491, 982, 1964, 3928, 5401, 10802, 21604, 43208, 486037, 972074, 1944148, 3888296, 5346407, 10692814, 21385628, 42771256, 238644167, 477288334, 954576668, 1909153336, 2625085837, 5250171674, 10500343348, 21000686696]

約数ペア:

[(1, 21000686696), (2, 10500343348), (4, 5250171674), (8, 2625085837), (11, 1909153336), (22, 954576668), (44, 477288334), (88, 238644167), (491, 42771256), (982, 21385628), (1964, 10692814), (3928, 5346407), (5401, 3888296), (10802, 1944148), (21604, 972074), (43208, 486037)]