21172806

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10597}}^1$

素因数の和:10645

約数の個数: 32

約数和(自身を含む): 48326880

約数和(自身を除く): 27154074

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10597, 21194, 31791, 63582, 95373, 190746, 286119, 392089, 572238, 784178, 1176267, 2352534, 3528801, 7057602, 10586403, 21172806]

約数ペア:

[(1, 21172806), (2, 10586403), (3, 7057602), (6, 3528801), (9, 2352534), (18, 1176267), (27, 784178), (37, 572238), (54, 392089), (74, 286119), (111, 190746), (222, 95373), (333, 63582), (666, 31791), (999, 21194), (1998, 10597)]