12978049

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{541}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 15609600

約数和(自身を除く): 2631551

約数列:

[1, 7, 23, 149, 161, 541, 1043, 3427, 3787, 12443, 23989, 80609, 87101, 564263, 1854007, 12978049]

約数ペア:

[(1, 12978049), (7, 1854007), (23, 564263), (149, 87101), (161, 80609), (541, 23989), (1043, 12443), (3427, 3787)]