20421046

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 34020000

約数和(自身を除く): 13598954

約数列:

[1, 2, 17, 29, 34, 58, 139, 149, 278, 298, 493, 986, 2363, 2533, 4031, 4321, 4726, 5066, 8062, 8642, 20711, 41422, 68527, 73457, 137054, 146914, 352087, 600619, 704174, 1201238, 10210523, 20421046]

約数ペア:

[(1, 20421046), (2, 10210523), (17, 1201238), (29, 704174), (34, 600619), (58, 352087), (139, 146914), (149, 137054), (278, 73457), (298, 68527), (493, 41422), (986, 20711), (2363, 8642), (2533, 8062), (4031, 5066), (4321, 4726)]