1221446254

素因数分解:

$2^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{249989}}^1$

素因数の和:250347

約数の個数: 16

約数和(自身を含む): 2099916000

約数和(自身を除く): 878469746

約数列:

[1, 2, 7, 14, 349, 698, 2443, 4886, 249989, 499978, 1749923, 3499846, 87246161, 174492322, 610723127, 1221446254]

約数ペア:

[(1, 1221446254), (2, 610723127), (7, 174492322), (14, 87246161), (349, 3499846), (698, 1749923), (2443, 499978), (4886, 249989)]