17967521

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 23587200

約数和(自身を除く): 5619679

約数列:

[1, 11, 13, 17, 19, 143, 187, 209, 221, 247, 323, 389, 2431, 2717, 3553, 4199, 4279, 5057, 6613, 7391, 46189, 55627, 72743, 81301, 85969, 96083, 125647, 945659, 1056913, 1382117, 1633411, 17967521]

約数ペア:

[(1, 17967521), (11, 1633411), (13, 1382117), (17, 1056913), (19, 945659), (143, 125647), (187, 96083), (209, 85969), (221, 81301), (247, 72743), (323, 55627), (389, 46189), (2431, 7391), (2717, 6613), (3553, 5057), (4199, 4279)]