1221997154

素因数分解:

$2^1\times 7^1\times {\mathrm{4493}}^1\times {\mathrm{19427}}^1$

素因数の和:23929

約数の個数: 16

約数和(自身を含む): 2095426368

約数和(自身を除く): 873429214

約数列:

[1, 2, 7, 14, 4493, 8986, 19427, 31451, 38854, 62902, 135989, 271978, 87285511, 174571022, 610998577, 1221997154]

約数ペア:

[(1, 1221997154), (2, 610998577), (7, 174571022), (14, 87285511), (4493, 271978), (8986, 135989), (19427, 62902), (31451, 38854)]