19945556

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2141}}^1$

素因数の和:2299

約数の個数: 24

約数和(自身を含む): 37245096

約数和(自身を除く): 17299540

約数列:

[1, 2, 4, 17, 34, 68, 137, 274, 548, 2141, 2329, 4282, 4658, 8564, 9316, 36397, 72794, 145588, 293317, 586634, 1173268, 4986389, 9972778, 19945556]

約数ペア:

[(1, 19945556), (2, 9972778), (4, 4986389), (17, 1173268), (34, 586634), (68, 293317), (137, 145588), (274, 72794), (548, 36397), (2141, 9316), (2329, 8564), (4282, 4658)]