204925721

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 285288192

約数和(自身を除く): 80362471

約数列:

[1, 7, 11, 13, 37, 77, 91, 121, 143, 259, 407, 481, 503, 847, 1001, 1573, 2849, 3367, 3521, 4477, 5291, 5533, 6539, 11011, 18611, 31339, 37037, 38731, 45773, 58201, 60863, 71929, 130277, 204721, 241943, 407407, 426041, 503503, 791219, 1433047, 1693601, 2251931, 2661373, 5538533, 15763517, 18629611, 29275103, 204925721]

約数ペア:

[(1, 204925721), (7, 29275103), (11, 18629611), (13, 15763517), (37, 5538533), (77, 2661373), (91, 2251931), (121, 1693601), (143, 1433047), (259, 791219), (407, 503503), (481, 426041), (503, 407407), (847, 241943), (1001, 204721), (1573, 130277), (2849, 71929), (3367, 60863), (3521, 58201), (4477, 45773), (5291, 38731), (5533, 37037), (6539, 31339), (11011, 18611)]