19005404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 37768416

約数和(自身を除く): 18763012

約数列:

[1, 2, 4, 11, 22, 44, 61, 73, 97, 122, 146, 194, 244, 292, 388, 671, 803, 1067, 1342, 1606, 2134, 2684, 3212, 4268, 4453, 5917, 7081, 8906, 11834, 14162, 17812, 23668, 28324, 48983, 65087, 77891, 97966, 130174, 155782, 195932, 260348, 311564, 431941, 863882, 1727764, 4751351, 9502702, 19005404]

約数ペア:

[(1, 19005404), (2, 9502702), (4, 4751351), (11, 1727764), (22, 863882), (44, 431941), (61, 311564), (73, 260348), (97, 195932), (122, 155782), (146, 130174), (194, 97966), (244, 77891), (292, 65087), (388, 48983), (671, 28324), (803, 23668), (1067, 17812), (1342, 14162), (1606, 11834), (2134, 8906), (2684, 7081), (3212, 5917), (4268, 4453)]