19963318

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{2161}}^1$

素因数の和:2343

約数の個数: 16

約数和(自身を含む): 31132800

約数和(自身を除く): 11169482

約数列:

[1, 2, 31, 62, 149, 298, 2161, 4322, 4619, 9238, 66991, 133982, 321989, 643978, 9981659, 19963318]

約数ペア:

[(1, 19963318), (2, 9981659), (31, 643978), (62, 321989), (149, 133982), (298, 66991), (2161, 9238), (4322, 4619)]