18181809

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{811}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 27361152

約数和(自身を除く): 9179343

約数列:

[1, 3, 9, 47, 53, 141, 159, 423, 477, 811, 2433, 2491, 7299, 7473, 22419, 38117, 42983, 114351, 128949, 343053, 386847, 2020201, 6060603, 18181809]

約数ペア:

[(1, 18181809), (3, 6060603), (9, 2020201), (47, 386847), (53, 343053), (141, 128949), (159, 114351), (423, 42983), (477, 38117), (811, 22419), (2433, 7473), (2491, 7299)]