19956204

素因数分解:

$2^2\times 3^2\times {\mathrm{491}}^1\times {\mathrm{1129}}^1$

素因数の和:1630

約数の個数: 36

約数和(自身を含む): 50592360

約数和(自身を除く): 30636156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 491, 982, 1129, 1473, 1964, 2258, 2946, 3387, 4419, 4516, 5892, 6774, 8838, 10161, 13548, 17676, 20322, 40644, 554339, 1108678, 1663017, 2217356, 3326034, 4989051, 6652068, 9978102, 19956204]

約数ペア:

[(1, 19956204), (2, 9978102), (3, 6652068), (4, 4989051), (6, 3326034), (9, 2217356), (12, 1663017), (18, 1108678), (36, 554339), (491, 40644), (982, 20322), (1129, 17676), (1473, 13548), (1964, 10161), (2258, 8838), (2946, 6774), (3387, 5892), (4419, 4516)]