19864376

素因数分解:

$2^3\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1549}}^1$

素因数の和:1791

約数の個数: 32

約数和(自身を含む): 42780000

約数和(自身を除く): 22915624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 229, 458, 916, 1549, 1603, 1832, 3098, 3206, 6196, 6412, 10843, 12392, 12824, 21686, 43372, 86744, 354721, 709442, 1418884, 2483047, 2837768, 4966094, 9932188, 19864376]

約数ペア:

[(1, 19864376), (2, 9932188), (4, 4966094), (7, 2837768), (8, 2483047), (14, 1418884), (28, 709442), (56, 354721), (229, 86744), (458, 43372), (916, 21686), (1549, 12824), (1603, 12392), (1832, 10843), (3098, 6412), (3206, 6196)]