19914237

素因数分解:

$3^2\times 7^3\times {\mathrm{6451}}^1$

素因数の和:6478

約数の個数: 24

約数和(自身を含む): 33550400

約数和(自身を除く): 13636163

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6451, 19353, 45157, 58059, 135471, 316099, 406413, 948297, 2212693, 2844891, 6638079, 19914237]

約数ペア:

[(1, 19914237), (3, 6638079), (7, 2844891), (9, 2212693), (21, 948297), (49, 406413), (63, 316099), (147, 135471), (343, 58059), (441, 45157), (1029, 19353), (3087, 6451)]