20942935

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 7442345

約数列:

[1, 5, 13, 43, 59, 65, 127, 215, 295, 559, 635, 767, 1651, 2537, 2795, 3835, 5461, 7493, 8255, 12685, 27305, 32981, 37465, 70993, 97409, 164905, 322199, 354965, 487045, 1610995, 4188587, 20942935]

約数ペア:

[(1, 20942935), (5, 4188587), (13, 1610995), (43, 487045), (59, 354965), (65, 322199), (127, 164905), (215, 97409), (295, 70993), (559, 37465), (635, 32981), (767, 27305), (1651, 12685), (2537, 8255), (2795, 7493), (3835, 5461)]