20487892

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{401}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 36773352

約数和(自身を除く): 16285460

約数列:

[1, 2, 4, 53, 106, 212, 241, 401, 482, 802, 964, 1604, 12773, 21253, 25546, 42506, 51092, 85012, 96641, 193282, 386564, 5121973, 10243946, 20487892]

約数ペア:

[(1, 20487892), (2, 10243946), (4, 5121973), (53, 386564), (106, 193282), (212, 96641), (241, 85012), (401, 51092), (482, 42506), (802, 25546), (964, 21253), (1604, 12773)]