18881445

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 33860736

約数和(自身を除く): 14979291

約数列:

[1, 3, 5, 11, 15, 33, 55, 101, 103, 121, 165, 303, 309, 363, 505, 515, 605, 1111, 1133, 1515, 1545, 1815, 3333, 3399, 5555, 5665, 10403, 12221, 12463, 16665, 16995, 31209, 36663, 37389, 52015, 61105, 62315, 114433, 156045, 183315, 186945, 343299, 572165, 1258763, 1716495, 3776289, 6293815, 18881445]

約数ペア:

[(1, 18881445), (3, 6293815), (5, 3776289), (11, 1716495), (15, 1258763), (33, 572165), (55, 343299), (101, 186945), (103, 183315), (121, 156045), (165, 114433), (303, 62315), (309, 61105), (363, 52015), (505, 37389), (515, 36663), (605, 31209), (1111, 16995), (1133, 16665), (1515, 12463), (1545, 12221), (1815, 10403), (3333, 5665), (3399, 5555)]