21051128

素因数分解:

$2^3\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1201}}^1$

素因数の和:1527

約数の個数: 32

約数和(自身を含む): 45291360

約数和(自身を除く): 24240232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 313, 626, 1201, 1252, 2191, 2402, 2504, 4382, 4804, 8407, 8764, 9608, 16814, 17528, 33628, 67256, 375913, 751826, 1503652, 2631391, 3007304, 5262782, 10525564, 21051128]

約数ペア:

[(1, 21051128), (2, 10525564), (4, 5262782), (7, 3007304), (8, 2631391), (14, 1503652), (28, 751826), (56, 375913), (313, 67256), (626, 33628), (1201, 17528), (1252, 16814), (2191, 9608), (2402, 8764), (2504, 8407), (4382, 4804)]