17487729

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1997}}^1$

素因数の和:2149

約数の個数: 24

約数和(自身を含む): 29090880

約数和(自身を除く): 11603151

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 1997, 2919, 5991, 8757, 13979, 17973, 41937, 125811, 277583, 832749, 1943081, 2498247, 5829243, 17487729]

約数ペア:

[(1, 17487729), (3, 5829243), (7, 2498247), (9, 1943081), (21, 832749), (63, 277583), (139, 125811), (417, 41937), (973, 17973), (1251, 13979), (1997, 8757), (2919, 5991)]