2189957

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 2954880

約数和(自身を除く): 764923

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 239, 539, 833, 1309, 1673, 2629, 4063, 9163, 11711, 18403, 28441, 44693, 128821, 199087, 312851, 2189957]

約数ペア:

[(1, 2189957), (7, 312851), (11, 199087), (17, 128821), (49, 44693), (77, 28441), (119, 18403), (187, 11711), (239, 9163), (539, 4063), (833, 2629), (1309, 1673)]