19759971

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{757}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 33182208

約数和(自身を除く): 13422237

約数列:

[1, 3, 7, 11, 21, 33, 77, 113, 231, 339, 757, 791, 1243, 2271, 2373, 3729, 5299, 8327, 8701, 15897, 24981, 26103, 58289, 85541, 174867, 256623, 598787, 940951, 1796361, 2822853, 6586657, 19759971]

約数ペア:

[(1, 19759971), (3, 6586657), (7, 2822853), (11, 1796361), (21, 940951), (33, 598787), (77, 256623), (113, 174867), (231, 85541), (339, 58289), (757, 26103), (791, 24981), (1243, 15897), (2271, 8701), (2373, 8327), (3729, 5299)]