20356156977

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{8419}}^1$

素因数の和:8718

約数の個数: 48

約数和(自身を含む): 31063737600

約数和(自身を除く): 10707580623

約数列:

[1, 3, 13, 19, 39, 57, 169, 247, 251, 507, 741, 753, 3211, 3263, 4769, 8419, 9633, 9789, 14307, 25257, 42419, 61997, 109447, 127257, 159961, 185991, 328341, 479883, 805961, 1422811, 2079493, 2113169, 2417883, 4268433, 6238479, 6339507, 27033409, 27471197, 40150211, 81100227, 82413591, 120450633, 357125561, 521952743, 1071376683, 1565858229, 6785385659, 20356156977]

約数ペア:

[(1, 20356156977), (3, 6785385659), (13, 1565858229), (19, 1071376683), (39, 521952743), (57, 357125561), (169, 120450633), (247, 82413591), (251, 81100227), (507, 40150211), (741, 27471197), (753, 27033409), (3211, 6339507), (3263, 6238479), (4769, 4268433), (8419, 2417883), (9633, 2113169), (9789, 2079493), (14307, 1422811), (25257, 805961), (42419, 479883), (61997, 328341), (109447, 185991), (127257, 159961)]