30947906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{19813}}^1$

素因数の和:19897

約数の個数: 16

約数和(自身を含む): 51357888

約数和(自身を除く): 20409982

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 19813, 39626, 217943, 435886, 1406723, 2813446, 15473953, 30947906]

約数ペア:

[(1, 30947906), (2, 15473953), (11, 2813446), (22, 1406723), (71, 435886), (142, 217943), (781, 39626), (1562, 19813)]