20992293

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6287}}^1$

素因数の和:6353

約数の個数: 24

約数和(自身を含む): 35313408

約数和(自身を除く): 14321115

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6287, 18861, 44009, 56583, 132027, 333211, 396081, 999633, 2332477, 2998899, 6997431, 20992293]

約数ペア:

[(1, 20992293), (3, 6997431), (7, 2998899), (9, 2332477), (21, 999633), (53, 396081), (63, 333211), (159, 132027), (371, 56583), (477, 44009), (1113, 18861), (3339, 6287)]