1991021761

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1033}}^1\times {\mathrm{1663}}^1$

素因数の和:2776

約数の個数: 16

約数和(自身を含む): 2133514240

約数和(自身を除く): 142492479

約数列:

[1, 19, 61, 1033, 1159, 1663, 19627, 31597, 63013, 101443, 1197247, 1717879, 1927417, 32639701, 104790619, 1991021761]

約数ペア:

[(1, 1991021761), (19, 104790619), (61, 32639701), (1033, 1927417), (1159, 1717879), (1663, 1197247), (19627, 101443), (31597, 63013)]