21040502

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4993}}^1$

素因数の和:5052

約数の個数: 24

約数和(自身を含む): 37574856

約数和(自身を除く): 16534354

約数列:

[1, 2, 7, 14, 43, 49, 86, 98, 301, 602, 2107, 4214, 4993, 9986, 34951, 69902, 214699, 244657, 429398, 489314, 1502893, 3005786, 10520251, 21040502]

約数ペア:

[(1, 21040502), (2, 10520251), (7, 3005786), (14, 1502893), (43, 489314), (49, 429398), (86, 244657), (98, 214699), (301, 69902), (602, 34951), (2107, 9986), (4214, 4993)]