21000876

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1307}}^1$

素因数の和:1430

約数の個数: 48

約数和(自身を含む): 53324544

約数和(自身を除く): 32323668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 103, 156, 206, 309, 412, 618, 1236, 1307, 1339, 2614, 2678, 3921, 4017, 5228, 5356, 7842, 8034, 15684, 16068, 16991, 33982, 50973, 67964, 101946, 134621, 203892, 269242, 403863, 538484, 807726, 1615452, 1750073, 3500146, 5250219, 7000292, 10500438, 21000876]

約数ペア:

[(1, 21000876), (2, 10500438), (3, 7000292), (4, 5250219), (6, 3500146), (12, 1750073), (13, 1615452), (26, 807726), (39, 538484), (52, 403863), (78, 269242), (103, 203892), (156, 134621), (206, 101946), (309, 67964), (412, 50973), (618, 33982), (1236, 16991), (1307, 16068), (1339, 15684), (2614, 8034), (2678, 7842), (3921, 5356), (4017, 5228)]