646987286

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1278631}}^1$

素因数の和:1278667

約数の個数: 16

約数和(自身を含む): 1104738048

約数和(自身を除く): 457750762

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 1278631, 2557262, 14064941, 28129882, 29408513, 58817026, 323493643, 646987286]

約数ペア:

[(1, 646987286), (2, 323493643), (11, 58817026), (22, 29408513), (23, 28129882), (46, 14064941), (253, 2557262), (506, 1278631)]