20589212

素因数分解:

$2^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1439}}^1$

素因数の和:1530

約数の個数: 36

約数和(自身を含む): 42517440

約数和(自身を除く): 21928228

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 146, 196, 292, 511, 1022, 1439, 2044, 2878, 3577, 5756, 7154, 10073, 14308, 20146, 40292, 70511, 105047, 141022, 210094, 282044, 420188, 735329, 1470658, 2941316, 5147303, 10294606, 20589212]

約数ペア:

[(1, 20589212), (2, 10294606), (4, 5147303), (7, 2941316), (14, 1470658), (28, 735329), (49, 420188), (73, 282044), (98, 210094), (146, 141022), (196, 105047), (292, 70511), (511, 40292), (1022, 20146), (1439, 14308), (2044, 10073), (2878, 7154), (3577, 5756)]