20697117

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 32569344

約数和(自身を除く): 11872227

約数列:

[1, 3, 7, 21, 61, 107, 151, 183, 321, 427, 453, 749, 1057, 1281, 2247, 3171, 6527, 9211, 16157, 19581, 27633, 45689, 48471, 64477, 113099, 137067, 193431, 339297, 985577, 2956731, 6899039, 20697117]

約数ペア:

[(1, 20697117), (3, 6899039), (7, 2956731), (21, 985577), (61, 339297), (107, 193431), (151, 137067), (183, 113099), (321, 64477), (427, 48471), (453, 45689), (749, 27633), (1057, 19581), (1281, 16157), (2247, 9211), (3171, 6527)]