21147408

素因数分解:

$2^4\times 3^2\times {\mathrm{146857}}^1$

素因数の和:146871

約数の個数: 30

約数和(自身を含む): 59183774

約数和(自身を除く): 38036366

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 146857, 293714, 440571, 587428, 881142, 1174856, 1321713, 1762284, 2349712, 2643426, 3524568, 5286852, 7049136, 10573704, 21147408]

約数ペア:

[(1, 21147408), (2, 10573704), (3, 7049136), (4, 5286852), (6, 3524568), (8, 2643426), (9, 2349712), (12, 1762284), (16, 1321713), (18, 1174856), (24, 881142), (36, 587428), (48, 440571), (72, 293714), (144, 146857)]