21777156

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{3853}}^1$

素因数の和:4020

約数の個数: 36

約数和(自身を含む): 55412812

約数和(自身を除く): 33635656

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 3853, 5652, 7706, 11559, 15412, 23118, 34677, 46236, 69354, 138708, 604921, 1209842, 1814763, 2419684, 3629526, 5444289, 7259052, 10888578, 21777156]

約数ペア:

[(1, 21777156), (2, 10888578), (3, 7259052), (4, 5444289), (6, 3629526), (9, 2419684), (12, 1814763), (18, 1209842), (36, 604921), (157, 138708), (314, 69354), (471, 46236), (628, 34677), (942, 23118), (1413, 15412), (1884, 11559), (2826, 7706), (3853, 5652)]