20685158

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{883}}^1$

素因数の和:968

約数の個数: 32

約数和(自身を含む): 36088416

約数和(自身を除く): 15403258

約数列:

[1, 2, 13, 17, 26, 34, 53, 106, 221, 442, 689, 883, 901, 1378, 1766, 1802, 11479, 11713, 15011, 22958, 23426, 30022, 46799, 93598, 195143, 390286, 608387, 795583, 1216774, 1591166, 10342579, 20685158]

約数ペア:

[(1, 20685158), (2, 10342579), (13, 1591166), (17, 1216774), (26, 795583), (34, 608387), (53, 390286), (106, 195143), (221, 93598), (442, 46799), (689, 30022), (883, 23426), (901, 22958), (1378, 15011), (1766, 11713), (1802, 11479)]