20656872

素因数分解:

$2^3\times 3^2\times {\mathrm{281}}^1\times {\mathrm{1021}}^1$

素因数の和:1314

約数の個数: 48

約数和(自身を含む): 56199780

約数和(自身を除く): 35542908

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 281, 562, 843, 1021, 1124, 1686, 2042, 2248, 2529, 3063, 3372, 4084, 5058, 6126, 6744, 8168, 9189, 10116, 12252, 18378, 20232, 24504, 36756, 73512, 286901, 573802, 860703, 1147604, 1721406, 2295208, 2582109, 3442812, 5164218, 6885624, 10328436, 20656872]

約数ペア:

[(1, 20656872), (2, 10328436), (3, 6885624), (4, 5164218), (6, 3442812), (8, 2582109), (9, 2295208), (12, 1721406), (18, 1147604), (24, 860703), (36, 573802), (72, 286901), (281, 73512), (562, 36756), (843, 24504), (1021, 20232), (1124, 18378), (1686, 12252), (2042, 10116), (2248, 9189), (2529, 8168), (3063, 6744), (3372, 6126), (4084, 5058)]