21167069

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 27135648

約数和(自身を除く): 5968579

約数列:

[1, 7, 11, 49, 77, 173, 227, 539, 1211, 1589, 1903, 2497, 8477, 11123, 13321, 17479, 39271, 93247, 122353, 274897, 431981, 1924279, 3023867, 21167069]

約数ペア:

[(1, 21167069), (7, 3023867), (11, 1924279), (49, 431981), (77, 274897), (173, 122353), (227, 93247), (539, 39271), (1211, 17479), (1589, 13321), (1903, 11123), (2497, 8477)]