19541291

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^3\times {\mathrm{37}}^1$

素因数の和:112

約数の個数: 32

約数和(自身を含む): 26411520

約数和(自身を除く): 6870229

約数列:

[1, 7, 11, 19, 37, 77, 133, 209, 259, 361, 407, 703, 1463, 2527, 2849, 3971, 4921, 6859, 7733, 13357, 27797, 48013, 54131, 75449, 93499, 146927, 253783, 528143, 1028489, 1776481, 2791613, 19541291]

約数ペア:

[(1, 19541291), (7, 2791613), (11, 1776481), (19, 1028489), (37, 528143), (77, 253783), (133, 146927), (209, 93499), (259, 75449), (361, 54131), (407, 48013), (703, 27797), (1463, 13357), (2527, 7733), (2849, 6859), (3971, 4921)]