221580728

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{675551}}^1$

素因数の和:675598

約数の個数: 16

約数和(自身を含む): 425597760

約数和(自身を除く): 204017032

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 675551, 1351102, 2702204, 5404408, 27697591, 55395182, 110790364, 221580728]

約数ペア:

[(1, 221580728), (2, 110790364), (4, 55395182), (8, 27697591), (41, 5404408), (82, 2702204), (164, 1351102), (328, 675551)]