21747327

素因数分解:

$3^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{619}}^1$

素因数の和:875

約数の個数: 24

約数和(自身を含む): 33926400

約数和(自身を除く): 12179073

約数列:

[1, 3, 7, 21, 49, 147, 239, 619, 717, 1673, 1857, 4333, 5019, 11711, 12999, 30331, 35133, 90993, 147941, 443823, 1035587, 3106761, 7249109, 21747327]

約数ペア:

[(1, 21747327), (3, 7249109), (7, 3106761), (21, 1035587), (49, 443823), (147, 147941), (239, 90993), (619, 35133), (717, 30331), (1673, 12999), (1857, 11711), (4333, 5019)]