20889708

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{577}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 55931904

約数和(自身を除く): 35042196

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 431, 577, 862, 1154, 1293, 1724, 1731, 2308, 2586, 3017, 3462, 4039, 5172, 6034, 6924, 8078, 9051, 12068, 12117, 16156, 18102, 24234, 36204, 48468, 248687, 497374, 746061, 994748, 1492122, 1740809, 2984244, 3481618, 5222427, 6963236, 10444854, 20889708]

約数ペア:

[(1, 20889708), (2, 10444854), (3, 6963236), (4, 5222427), (6, 3481618), (7, 2984244), (12, 1740809), (14, 1492122), (21, 994748), (28, 746061), (42, 497374), (84, 248687), (431, 48468), (577, 36204), (862, 24234), (1154, 18102), (1293, 16156), (1724, 12117), (1731, 12068), (2308, 9051), (2586, 8078), (3017, 6924), (3462, 6034), (4039, 5172)]