1900390891

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{61297}}^1$

素因数の和:61450

約数の個数: 16

約数和(自身を含む): 2243997184

約数和(自身を除く): 343606293

約数列:

[1, 7, 43, 103, 301, 721, 4429, 31003, 61297, 429079, 2635771, 6313591, 18450397, 44195137, 271484413, 1900390891]

約数ペア:

[(1, 1900390891), (7, 271484413), (43, 44195137), (103, 18450397), (301, 6313591), (721, 2635771), (4429, 429079), (31003, 61297)]