20218687209

素因数分解:

$3^3\times 7^1\times {\mathrm{2239}}^1\times {\mathrm{47779}}^1$

素因数の和:50034

約数の個数: 32

約数和(自身を含む): 34248704000

約数和(自身を除く): 14030016791

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 2239, 6717, 15673, 20151, 47019, 47779, 60453, 141057, 143337, 334453, 423171, 430011, 1003359, 1290033, 3010077, 9030231, 106977181, 320931543, 748840267, 962794629, 2246520801, 2888383887, 6739562403, 20218687209]

約数ペア:

[(1, 20218687209), (3, 6739562403), (7, 2888383887), (9, 2246520801), (21, 962794629), (27, 748840267), (63, 320931543), (189, 106977181), (2239, 9030231), (6717, 3010077), (15673, 1290033), (20151, 1003359), (47019, 430011), (47779, 423171), (60453, 334453), (141057, 143337)]