21791084

素因数分解:

$2^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1523}}^1$

素因数の和:1614

約数の個数: 36

約数和(自身を含む): 44997624

約数和(自身を除く): 23206540

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 146, 196, 292, 511, 1022, 1523, 2044, 3046, 3577, 6092, 7154, 10661, 14308, 21322, 42644, 74627, 111179, 149254, 222358, 298508, 444716, 778253, 1556506, 3113012, 5447771, 10895542, 21791084]

約数ペア:

[(1, 21791084), (2, 10895542), (4, 5447771), (7, 3113012), (14, 1556506), (28, 778253), (49, 444716), (73, 298508), (98, 222358), (146, 149254), (196, 111179), (292, 74627), (511, 42644), (1022, 21322), (1523, 14308), (2044, 10661), (3046, 7154), (3577, 6092)]