20176490985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{299777}}^1$

素因数の和:300433

約数の個数: 32

約数和(自身を含む): 36951835392

約数和(自身を除く): 16775344407

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 641, 1923, 3205, 4487, 9615, 13461, 22435, 67305, 299777, 899331, 1498885, 2098439, 4496655, 6295317, 10492195, 31476585, 192157057, 576471171, 960785285, 1345099399, 2882355855, 4035298197, 6725496995, 20176490985]

約数ペア:

[(1, 20176490985), (3, 6725496995), (5, 4035298197), (7, 2882355855), (15, 1345099399), (21, 960785285), (35, 576471171), (105, 192157057), (641, 31476585), (1923, 10492195), (3205, 6295317), (4487, 4496655), (9615, 2098439), (13461, 1498885), (22435, 899331), (67305, 299777)]