20855528078

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{839}}^1\times {\mathrm{23059}}^1$

素因数の和:23925

約数の個数: 48

約数和(自身を含む): 39748060800

約数和(自身を除く): 18892532722

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 839, 1078, 1678, 5873, 9229, 11746, 18458, 23059, 41111, 46118, 64603, 82222, 129206, 161413, 253649, 322826, 452221, 507298, 904442, 1129891, 1775543, 2259782, 3551086, 12428801, 19346501, 24857602, 38693002, 135425507, 212811511, 270851014, 425623022, 947978549, 1489680577, 1895957098, 2979361154, 10427764039, 20855528078]

約数ペア:

[(1, 20855528078), (2, 10427764039), (7, 2979361154), (11, 1895957098), (14, 1489680577), (22, 947978549), (49, 425623022), (77, 270851014), (98, 212811511), (154, 135425507), (539, 38693002), (839, 24857602), (1078, 19346501), (1678, 12428801), (5873, 3551086), (9229, 2259782), (11746, 1775543), (18458, 1129891), (23059, 904442), (41111, 507298), (46118, 452221), (64603, 322826), (82222, 253649), (129206, 161413)]