21728056

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3767}}^1$

素因数の和:3883

約数の個数: 32

約数和(自身を含む): 47024640

約数和(自身を除く): 25296584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1442, 2884, 3767, 5768, 7534, 15068, 26369, 30136, 52738, 105476, 210952, 388001, 776002, 1552004, 2716007, 3104008, 5432014, 10864028, 21728056]

約数ペア:

[(1, 21728056), (2, 10864028), (4, 5432014), (7, 3104008), (8, 2716007), (14, 1552004), (28, 776002), (56, 388001), (103, 210952), (206, 105476), (412, 52738), (721, 30136), (824, 26369), (1442, 15068), (2884, 7534), (3767, 5768)]