21204764

素因数分解:

$2^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{2389}}^1$

素因数の和:2717

約数の個数: 24

約数和(自身を含む): 42561120

約数和(自身を除く): 21356356

約数列:

[1, 2, 4, 7, 14, 28, 317, 634, 1268, 2219, 2389, 4438, 4778, 8876, 9556, 16723, 33446, 66892, 757313, 1514626, 3029252, 5301191, 10602382, 21204764]

約数ペア:

[(1, 21204764), (2, 10602382), (4, 5301191), (7, 3029252), (14, 1514626), (28, 757313), (317, 66892), (634, 33446), (1268, 16723), (2219, 9556), (2389, 8876), (4438, 4778)]