20169279

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 33953920

約数和(自身を除く): 13784641

約数列:

[1, 3, 9, 13, 19, 39, 43, 57, 117, 129, 171, 211, 247, 387, 559, 633, 741, 817, 1677, 1899, 2223, 2451, 2743, 4009, 5031, 7353, 8229, 9073, 10621, 12027, 24687, 27219, 31863, 36081, 52117, 81657, 95589, 117949, 156351, 172387, 353847, 469053, 517161, 1061541, 1551483, 2241031, 6723093, 20169279]

約数ペア:

[(1, 20169279), (3, 6723093), (9, 2241031), (13, 1551483), (19, 1061541), (39, 517161), (43, 469053), (57, 353847), (117, 172387), (129, 156351), (171, 117949), (211, 95589), (247, 81657), (387, 52117), (559, 36081), (633, 31863), (741, 27219), (817, 24687), (1677, 12027), (1899, 10621), (2223, 9073), (2451, 8229), (2743, 7353), (4009, 5031)]