17172813

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 27131904

約数和(自身を除く): 9959091

約数列:

[1, 3, 7, 21, 47, 127, 137, 141, 329, 381, 411, 889, 959, 987, 2667, 2877, 5969, 6439, 17399, 17907, 19317, 41783, 45073, 52197, 121793, 125349, 135219, 365379, 817753, 2453259, 5724271, 17172813]

約数ペア:

[(1, 17172813), (3, 5724271), (7, 2453259), (21, 817753), (47, 365379), (127, 135219), (137, 125349), (141, 121793), (329, 52197), (381, 45073), (411, 41783), (889, 19317), (959, 17907), (987, 17399), (2667, 6439), (2877, 5969)]