668821076

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2171497}}^1$

素因数の和:2171519

約数の個数: 24

約数和(自身を含む): 1459246656

約数和(自身を除く): 790425580

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 2171497, 4342994, 8685988, 15200479, 23886467, 30400958, 47772934, 60801916, 95545868, 167205269, 334410538, 668821076]

約数ペア:

[(1, 668821076), (2, 334410538), (4, 167205269), (7, 95545868), (11, 60801916), (14, 47772934), (22, 30400958), (28, 23886467), (44, 15200479), (77, 8685988), (154, 4342994), (308, 2171497)]