20121261309

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{401}}^1\times {\mathrm{55201}}^1$

素因数の和:55709

約数の個数: 24

約数和(自身を含む): 29425536504

約数和(自身を除く): 9304275195

約数列:

[1, 3, 9, 101, 303, 401, 909, 1203, 3609, 40501, 55201, 121503, 165603, 364509, 496809, 5575301, 16725903, 22135601, 50177709, 66406803, 199220409, 2235695701, 6707087103, 20121261309]

約数ペア:

[(1, 20121261309), (3, 6707087103), (9, 2235695701), (101, 199220409), (303, 66406803), (401, 50177709), (909, 22135601), (1203, 16725903), (3609, 5575301), (40501, 496809), (55201, 364509), (121503, 165603)]