221493

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:164

約数の個数: 16

約数和(自身を含む): 323136

約数和(自身を除く): 101643

約数列:

[1, 3, 17, 43, 51, 101, 129, 303, 731, 1717, 2193, 4343, 5151, 13029, 73831, 221493]

約数ペア:

[(1, 221493), (3, 73831), (17, 13029), (43, 5151), (51, 4343), (101, 2193), (129, 1717), (303, 731)]