217725171

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{24677}}^1$

素因数の和:24870

約数の個数: 16

約数和(自身を含む): 309165984

約数和(自身を除く): 91440813

約数列:

[1, 3, 17, 51, 173, 519, 2941, 8823, 24677, 74031, 419509, 1258527, 4269121, 12807363, 72575057, 217725171]

約数ペア:

[(1, 217725171), (3, 72575057), (17, 12807363), (51, 4269121), (173, 1258527), (519, 419509), (2941, 74031), (8823, 24677)]