1557417966

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19966897}}^1$

素因数の和:19966915

約数の個数: 16

約数和(自身を含む): 3354438864

約数和(自身を除く): 1797020898

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 19966897, 39933794, 59900691, 119801382, 259569661, 519139322, 778708983, 1557417966]

約数ペア:

[(1, 1557417966), (2, 778708983), (3, 519139322), (6, 259569661), (13, 119801382), (26, 59900691), (39, 39933794), (78, 19966897)]