20737827

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 36

約数和(自身を含む): 33404280

約数和(自身を除く): 12666453

約数列:

[1, 3, 9, 11, 33, 99, 121, 137, 139, 363, 411, 417, 1089, 1233, 1251, 1507, 1529, 4521, 4587, 13563, 13761, 16577, 16819, 19043, 49731, 50457, 57129, 149193, 151371, 171387, 209473, 628419, 1885257, 2304203, 6912609, 20737827]

約数ペア:

[(1, 20737827), (3, 6912609), (9, 2304203), (11, 1885257), (33, 628419), (99, 209473), (121, 171387), (137, 151371), (139, 149193), (363, 57129), (411, 50457), (417, 49731), (1089, 19043), (1233, 16819), (1251, 16577), (1507, 13761), (1529, 13563), (4521, 4587)]