20181288957

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{397}}^1\times {\mathrm{3391}}^1$

素因数の和:4073

約数の個数: 32

約数和(自身を含む): 28512337920

約数和(自身を除く): 8331048963

約数列:

[1, 3, 19, 57, 263, 397, 789, 1191, 3391, 4997, 7543, 10173, 14991, 22629, 64429, 104411, 193287, 313233, 891833, 1346227, 1983809, 2675499, 4038681, 5951427, 16944827, 25578313, 50834481, 76734939, 354057701, 1062173103, 6727096319, 20181288957]

約数ペア:

[(1, 20181288957), (3, 6727096319), (19, 1062173103), (57, 354057701), (263, 76734939), (397, 50834481), (789, 25578313), (1191, 16944827), (3391, 5951427), (4997, 4038681), (7543, 2675499), (10173, 1983809), (14991, 1346227), (22629, 891833), (64429, 313233), (104411, 193287)]