18866886

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{461}}^1$

素因数の和:844

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 21049914

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 359, 461, 718, 922, 1077, 1383, 2154, 2766, 6821, 8759, 13642, 17518, 20463, 26277, 40926, 52554, 165499, 330998, 496497, 992994, 3144481, 6288962, 9433443, 18866886]

約数ペア:

[(1, 18866886), (2, 9433443), (3, 6288962), (6, 3144481), (19, 992994), (38, 496497), (57, 330998), (114, 165499), (359, 52554), (461, 40926), (718, 26277), (922, 20463), (1077, 17518), (1383, 13642), (2154, 8759), (2766, 6821)]