20502669

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13219}}^1$

素因数の和:13280

約数の個数: 16

約数和(自身を含む): 30458880

約数和(自身を除く): 9956211

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13219, 39657, 145409, 436227, 621293, 1863879, 6834223, 20502669]

約数ペア:

[(1, 20502669), (3, 6834223), (11, 1863879), (33, 621293), (47, 436227), (141, 145409), (517, 39657), (1551, 13219)]