217878351

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1\times {\mathrm{3943}}^1$

素因数の和:4222

約数の個数: 16

約数和(自身を含む): 294948096

約数和(自身を除く): 77069745

約数列:

[1, 3, 113, 163, 339, 489, 3943, 11829, 18419, 55257, 445559, 642709, 1336677, 1928127, 72626117, 217878351]

約数ペア:

[(1, 217878351), (3, 72626117), (113, 1928127), (163, 1336677), (339, 642709), (489, 445559), (3943, 55257), (11829, 18419)]