1639719

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 2562560

約数和(自身を除く): 922841

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 223, 387, 669, 817, 2007, 2451, 4237, 7353, 9589, 12711, 28767, 38133, 86301, 182191, 546573, 1639719]

約数ペア:

[(1, 1639719), (3, 546573), (9, 182191), (19, 86301), (43, 38133), (57, 28767), (129, 12711), (171, 9589), (223, 7353), (387, 4237), (669, 2451), (817, 2007)]