21249626

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{4139}}^1$

素因数の和:4309

約数の個数: 16

約数和(自身を含む): 33981120

約数和(自身を除く): 12731494

約数列:

[1, 2, 17, 34, 151, 302, 2567, 4139, 5134, 8278, 70363, 140726, 624989, 1249978, 10624813, 21249626]

約数ペア:

[(1, 21249626), (2, 10624813), (17, 1249978), (34, 624989), (151, 140726), (302, 70363), (2567, 8278), (4139, 5134)]