12191991

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{7349}}^1$

素因数の和:7438

約数の個数: 16

約数和(自身を含む): 18816000

約数和(自身を除く): 6624009

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 7349, 22047, 51443, 154329, 580571, 1741713, 4063997, 12191991]

約数ペア:

[(1, 12191991), (3, 4063997), (7, 1741713), (21, 580571), (79, 154329), (237, 51443), (553, 22047), (1659, 7349)]