21223468

素因数分解:

$2^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:555

約数の個数: 48

約数和(自身を含む): 44800000

約数和(自身を除く): 23576532

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 343, 434, 499, 686, 868, 998, 1372, 1519, 1996, 3038, 3493, 6076, 6986, 10633, 13972, 15469, 21266, 24451, 30938, 42532, 48902, 61876, 97804, 108283, 171157, 216566, 342314, 433132, 684628, 757981, 1515962, 3031924, 5305867, 10611734, 21223468]

約数ペア:

[(1, 21223468), (2, 10611734), (4, 5305867), (7, 3031924), (14, 1515962), (28, 757981), (31, 684628), (49, 433132), (62, 342314), (98, 216566), (124, 171157), (196, 108283), (217, 97804), (343, 61876), (434, 48902), (499, 42532), (686, 30938), (868, 24451), (998, 21266), (1372, 15469), (1519, 13972), (1996, 10633), (3038, 6986), (3493, 6076)]