20215751907

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1\times {\mathrm{353}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 30069043200

約数和(自身を除く): 9853291293

約数列:

[1, 3, 13, 39, 47, 141, 157, 199, 353, 471, 597, 611, 1059, 1833, 2041, 2587, 4589, 6123, 7379, 7761, 9353, 13767, 16591, 22137, 28059, 31243, 49773, 55421, 70247, 93729, 95927, 121589, 166263, 210741, 215683, 287781, 364767, 406159, 647049, 720473, 913211, 1218477, 1468421, 2161419, 2604787, 2739633, 3301609, 4405263, 7814361, 9904827, 11028779, 19089473, 33086337, 33862231, 42920917, 57268419, 101586693, 128762751, 143374127, 430122381, 518352613, 1555057839, 6738583969, 20215751907]

約数ペア:

[(1, 20215751907), (3, 6738583969), (13, 1555057839), (39, 518352613), (47, 430122381), (141, 143374127), (157, 128762751), (199, 101586693), (353, 57268419), (471, 42920917), (597, 33862231), (611, 33086337), (1059, 19089473), (1833, 11028779), (2041, 9904827), (2587, 7814361), (4589, 4405263), (6123, 3301609), (7379, 2739633), (7761, 2604787), (9353, 2161419), (13767, 1468421), (16591, 1218477), (22137, 913211), (28059, 720473), (31243, 647049), (49773, 406159), (55421, 364767), (70247, 287781), (93729, 215683), (95927, 210741), (121589, 166263)]