21284054

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 36115200

約数和(自身を除く): 14831146

約数列:

[1, 2, 11, 22, 43, 86, 149, 151, 298, 302, 473, 946, 1639, 1661, 3278, 3322, 6407, 6493, 12814, 12986, 22499, 44998, 70477, 71423, 140954, 142846, 247489, 494978, 967457, 1934914, 10642027, 21284054]

約数ペア:

[(1, 21284054), (2, 10642027), (11, 1934914), (22, 967457), (43, 494978), (86, 247489), (149, 142846), (151, 140954), (298, 71423), (302, 70477), (473, 44998), (946, 22499), (1639, 12986), (1661, 12814), (3278, 6493), (3322, 6407)]