19919984

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6133}}^1$

素因数の和:6177

約数の個数: 40

約数和(自身を含む): 45636960

約数和(自身を除く): 25716976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6133, 12266, 24532, 42931, 49064, 85862, 98128, 171724, 177857, 343448, 355714, 686896, 711428, 1244999, 1422856, 2489998, 2845712, 4979996, 9959992, 19919984]

約数ペア:

[(1, 19919984), (2, 9959992), (4, 4979996), (7, 2845712), (8, 2489998), (14, 1422856), (16, 1244999), (28, 711428), (29, 686896), (56, 355714), (58, 343448), (112, 177857), (116, 171724), (203, 98128), (232, 85862), (406, 49064), (464, 42931), (812, 24532), (1624, 12266), (3248, 6133)]