21944440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{433}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 56871360

約数和(自身を除く): 34926920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 433, 724, 866, 905, 1267, 1448, 1732, 1810, 2165, 2534, 3031, 3464, 3620, 4330, 5068, 6062, 6335, 7240, 8660, 10136, 12124, 12670, 15155, 17320, 24248, 25340, 30310, 50680, 60620, 78373, 121240, 156746, 313492, 391865, 548611, 626984, 783730, 1097222, 1567460, 2194444, 2743055, 3134920, 4388888, 5486110, 10972220, 21944440]

約数ペア:

[(1, 21944440), (2, 10972220), (4, 5486110), (5, 4388888), (7, 3134920), (8, 2743055), (10, 2194444), (14, 1567460), (20, 1097222), (28, 783730), (35, 626984), (40, 548611), (56, 391865), (70, 313492), (140, 156746), (181, 121240), (280, 78373), (362, 60620), (433, 50680), (724, 30310), (866, 25340), (905, 24248), (1267, 17320), (1448, 15155), (1732, 12670), (1810, 12124), (2165, 10136), (2534, 8660), (3031, 7240), (3464, 6335), (3620, 6062), (4330, 5068)]