21817796

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5449}}^1$

素因数の和:5484

約数の個数: 48

約数和(自身を含む): 51273600

約数和(自身を除く): 29455804

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 5449, 10898, 21796, 38143, 59939, 70837, 76286, 119878, 141674, 152572, 239756, 283348, 419573, 495859, 779207, 839146, 991718, 1558414, 1678292, 1983436, 3116828, 5454449, 10908898, 21817796]

約数ペア:

[(1, 21817796), (2, 10908898), (4, 5454449), (7, 3116828), (11, 1983436), (13, 1678292), (14, 1558414), (22, 991718), (26, 839146), (28, 779207), (44, 495859), (52, 419573), (77, 283348), (91, 239756), (143, 152572), (154, 141674), (182, 119878), (286, 76286), (308, 70837), (364, 59939), (572, 38143), (1001, 21796), (2002, 10898), (4004, 5449)]