20672708

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3637}}^1$

素因数の和:3684

約数の個数: 36

約数和(自身を含む): 43546860

約数和(自身を除く): 22874152

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3637, 5684, 7274, 14548, 25459, 50918, 101836, 105473, 178213, 210946, 356426, 421892, 712852, 738311, 1476622, 2953244, 5168177, 10336354, 20672708]

約数ペア:

[(1, 20672708), (2, 10336354), (4, 5168177), (7, 2953244), (14, 1476622), (28, 738311), (29, 712852), (49, 421892), (58, 356426), (98, 210946), (116, 178213), (196, 105473), (203, 101836), (406, 50918), (812, 25459), (1421, 14548), (2842, 7274), (3637, 5684)]