18178559

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 22695120

約数和(自身を除く): 4516561

約数列:

[1, 7, 17, 49, 119, 139, 157, 833, 973, 1099, 2363, 2669, 6811, 7693, 16541, 18683, 21823, 115787, 130781, 152761, 370991, 1069327, 2596937, 18178559]

約数ペア:

[(1, 18178559), (7, 2596937), (17, 1069327), (49, 370991), (119, 152761), (139, 130781), (157, 115787), (833, 21823), (973, 18683), (1099, 16541), (2363, 7693), (2669, 6811)]