20163686396

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1686491}}^1$

素因数の和:1686570

約数の個数: 36

約数和(自身を含む): 41720439096

約数和(自身を除く): 21556752700

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1708, 2989, 5978, 11956, 1686491, 3372982, 6745964, 11805437, 23610874, 47221748, 82638059, 102875951, 165276118, 205751902, 330552236, 411503804, 720131657, 1440263314, 2880526628, 5040921599, 10081843198, 20163686396]

約数ペア:

[(1, 20163686396), (2, 10081843198), (4, 5040921599), (7, 2880526628), (14, 1440263314), (28, 720131657), (49, 411503804), (61, 330552236), (98, 205751902), (122, 165276118), (196, 102875951), (244, 82638059), (427, 47221748), (854, 23610874), (1708, 11805437), (2989, 6745964), (5978, 3372982), (11956, 1686491)]