20121749998

素因数分解:

$2^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{9646093}}^1$

素因数の和:9646251

約数の個数: 16

約数和(自身を含む): 34725938400

約数和(自身を除く): 14604188402

約数列:

[1, 2, 7, 14, 149, 298, 1043, 2086, 9646093, 19292186, 67522651, 135045302, 1437267857, 2874535714, 10060874999, 20121749998]

約数ペア:

[(1, 20121749998), (2, 10060874999), (7, 2874535714), (14, 1437267857), (149, 135045302), (298, 67522651), (1043, 19292186), (2086, 9646093)]