21429156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{757}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 57389696

約数和(自身を除く): 35960540

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 337, 674, 757, 1011, 1348, 1514, 2022, 2271, 2359, 3028, 4044, 4542, 4718, 5299, 7077, 9084, 9436, 10598, 14154, 15897, 21196, 28308, 31794, 63588, 255109, 510218, 765327, 1020436, 1530654, 1785763, 3061308, 3571526, 5357289, 7143052, 10714578, 21429156]

約数ペア:

[(1, 21429156), (2, 10714578), (3, 7143052), (4, 5357289), (6, 3571526), (7, 3061308), (12, 1785763), (14, 1530654), (21, 1020436), (28, 765327), (42, 510218), (84, 255109), (337, 63588), (674, 31794), (757, 28308), (1011, 21196), (1348, 15897), (1514, 14154), (2022, 10598), (2271, 9436), (2359, 9084), (3028, 7077), (4044, 5299), (4542, 4718)]