13821460

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2689}}^1$

素因数の和:2955

約数の個数: 24

約数和(自身を含む): 29148840

約数和(自身を除く): 15327380

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 2689, 5140, 5378, 10756, 13445, 26890, 53780, 691073, 1382146, 2764292, 3455365, 6910730, 13821460]

約数ペア:

[(1, 13821460), (2, 6910730), (4, 3455365), (5, 2764292), (10, 1382146), (20, 691073), (257, 53780), (514, 26890), (1028, 13445), (1285, 10756), (2570, 5378), (2689, 5140)]