21311727

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{523}}^1$

素因数の和:607

約数の個数: 24

約数和(自身を含む): 30886656

約数和(自身を除く): 9574929

約数列:

[1, 3, 17, 47, 51, 141, 289, 523, 799, 867, 1569, 2397, 8891, 13583, 24581, 26673, 40749, 73743, 151147, 417877, 453441, 1253631, 7103909, 21311727]

約数ペア:

[(1, 21311727), (3, 7103909), (17, 1253631), (47, 453441), (51, 417877), (141, 151147), (289, 73743), (523, 40749), (799, 26673), (867, 24581), (1569, 13583), (2397, 8891)]