21116872

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{13003}}^1$

素因数の和:13045

約数の個数: 32

約数和(自身を含む): 46814400

約数和(自身を除く): 25697528

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 13003, 26006, 52012, 91021, 104024, 182042, 364084, 377087, 728168, 754174, 1508348, 2639609, 3016696, 5279218, 10558436, 21116872]

約数ペア:

[(1, 21116872), (2, 10558436), (4, 5279218), (7, 3016696), (8, 2639609), (14, 1508348), (28, 754174), (29, 728168), (56, 377087), (58, 364084), (116, 182042), (203, 104024), (232, 91021), (406, 52012), (812, 26006), (1624, 13003)]