168205023

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{21023}}^1$

素因数の和:21163

約数の個数: 24

約数和(自身を含む): 279871488

約数和(自身を除く): 111666465

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 8001, 21023, 63069, 147161, 189207, 441483, 1324449, 2669921, 8009763, 18689447, 24029289, 56068341, 168205023]

約数ペア:

[(1, 168205023), (3, 56068341), (7, 24029289), (9, 18689447), (21, 8009763), (63, 2669921), (127, 1324449), (381, 441483), (889, 189207), (1143, 147161), (2667, 63069), (8001, 21023)]