643412

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2089}}^1$

素因数の和:2111

約数の個数: 24

約数和(自身を含む): 1404480

約数和(自身を除く): 761068

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 2089, 4178, 8356, 14623, 22979, 29246, 45958, 58492, 91916, 160853, 321706, 643412]

約数ペア:

[(1, 643412), (2, 321706), (4, 160853), (7, 91916), (11, 58492), (14, 45958), (22, 29246), (28, 22979), (44, 14623), (77, 8356), (154, 4178), (308, 2089)]