221379697

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21617}}^1$

素因数の和:21661

約数の個数: 24

約数和(自身を含む): 295734240

約数和(自身を除く): 74354543

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 10241, 21617, 151319, 237787, 410723, 1059233, 1664509, 2875061, 4517953, 11651563, 20125427, 31625671, 221379697]

約数ペア:

[(1, 221379697), (7, 31625671), (11, 20125427), (19, 11651563), (49, 4517953), (77, 2875061), (133, 1664509), (209, 1059233), (539, 410723), (931, 237787), (1463, 151319), (10241, 21617)]