19203886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:340

約数の個数: 32

約数和(自身を含む): 32266080

約数和(自身を除く): 13062194

約数列:

[1, 2, 13, 26, 43, 86, 89, 178, 193, 386, 559, 1118, 1157, 2314, 2509, 3827, 5018, 7654, 8299, 16598, 17177, 34354, 49751, 99502, 107887, 215774, 223301, 446602, 738611, 1477222, 9601943, 19203886]

約数ペア:

[(1, 19203886), (2, 9601943), (13, 1477222), (26, 738611), (43, 446602), (86, 223301), (89, 215774), (178, 107887), (193, 99502), (386, 49751), (559, 34354), (1118, 17177), (1157, 16598), (2314, 8299), (2509, 7654), (3827, 5018)]