20990684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{36697}}^1$

素因数の和:36725

約数の個数: 24

約数和(自身を含む): 43156848

約数和(自身を除く): 22166164

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 36697, 73394, 146788, 403667, 477061, 807334, 954122, 1614668, 1908244, 5247671, 10495342, 20990684]

約数ペア:

[(1, 20990684), (2, 10495342), (4, 5247671), (11, 1908244), (13, 1614668), (22, 954122), (26, 807334), (44, 477061), (52, 403667), (143, 146788), (286, 73394), (572, 36697)]