20537349

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{5653}}^1$

素因数の和:5836

約数の個数: 16

約数和(自身を含む): 31481472

約数和(自身を除く): 10944123

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 5653, 16959, 39571, 118713, 977969, 2933907, 6845783, 20537349]

約数ペア:

[(1, 20537349), (3, 6845783), (7, 2933907), (21, 977969), (173, 118713), (519, 39571), (1211, 16959), (3633, 5653)]