20265246

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:337

約数の個数: 48

約数和(自身を含む): 45253728

約数和(自身を除く): 24988482

約数列:

[1, 2, 3, 6, 9, 18, 71, 101, 142, 157, 202, 213, 303, 314, 426, 471, 606, 639, 909, 942, 1278, 1413, 1818, 2826, 7171, 11147, 14342, 15857, 21513, 22294, 31714, 33441, 43026, 47571, 64539, 66882, 95142, 100323, 129078, 142713, 200646, 285426, 1125847, 2251694, 3377541, 6755082, 10132623, 20265246]

約数ペア:

[(1, 20265246), (2, 10132623), (3, 6755082), (6, 3377541), (9, 2251694), (18, 1125847), (71, 285426), (101, 200646), (142, 142713), (157, 129078), (202, 100323), (213, 95142), (303, 66882), (314, 64539), (426, 47571), (471, 43026), (606, 33441), (639, 31714), (909, 22294), (942, 21513), (1278, 15857), (1413, 14342), (1818, 11147), (2826, 7171)]