21146904

素因数分解:

$2^3\times 3^2\times {\mathrm{139}}^1\times {\mathrm{2113}}^1$

素因数の和:2264

約数の個数: 48

約数和(自身を含む): 57712200

約数和(自身を除く): 36565296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 139, 278, 417, 556, 834, 1112, 1251, 1668, 2113, 2502, 3336, 4226, 5004, 6339, 8452, 10008, 12678, 16904, 19017, 25356, 38034, 50712, 76068, 152136, 293707, 587414, 881121, 1174828, 1762242, 2349656, 2643363, 3524484, 5286726, 7048968, 10573452, 21146904]

約数ペア:

[(1, 21146904), (2, 10573452), (3, 7048968), (4, 5286726), (6, 3524484), (8, 2643363), (9, 2349656), (12, 1762242), (18, 1174828), (24, 881121), (36, 587414), (72, 293707), (139, 152136), (278, 76068), (417, 50712), (556, 38034), (834, 25356), (1112, 19017), (1251, 16904), (1668, 12678), (2113, 10008), (2502, 8452), (3336, 6339), (4226, 5004)]