20831174

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 39817008

約数和(自身を除く): 18985834

約数列:

[1, 2, 7, 13, 14, 26, 49, 83, 91, 98, 166, 182, 197, 394, 581, 637, 1079, 1162, 1274, 1379, 2158, 2561, 2758, 4067, 5122, 7553, 8134, 9653, 15106, 16351, 17927, 19306, 32702, 35854, 52871, 105742, 114457, 125489, 212563, 228914, 250978, 425126, 801199, 1487941, 1602398, 2975882, 10415587, 20831174]

約数ペア:

[(1, 20831174), (2, 10415587), (7, 2975882), (13, 1602398), (14, 1487941), (26, 801199), (49, 425126), (83, 250978), (91, 228914), (98, 212563), (166, 125489), (182, 114457), (197, 105742), (394, 52871), (581, 35854), (637, 32702), (1079, 19306), (1162, 17927), (1274, 16351), (1379, 15106), (2158, 9653), (2561, 8134), (2758, 7553), (4067, 5122)]