19787612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3923}}^1$

素因数の和:4037

約数の個数: 24

約数和(自身を含む): 37686096

約数和(自身を除く): 17898484

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 3923, 5044, 7846, 15692, 50999, 101998, 203996, 380531, 761062, 1522124, 4946903, 9893806, 19787612]

約数ペア:

[(1, 19787612), (2, 9893806), (4, 4946903), (13, 1522124), (26, 761062), (52, 380531), (97, 203996), (194, 101998), (388, 50999), (1261, 15692), (2522, 7846), (3923, 5044)]