221654209

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{601}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 277401600

約数和(自身を除く): 55747391

約数列:

[1, 7, 19, 47, 59, 133, 329, 413, 601, 893, 1121, 2773, 4207, 6251, 7847, 11419, 19411, 28247, 35459, 52687, 79933, 197729, 248213, 368809, 536693, 673721, 1666573, 3756851, 4716047, 11666011, 31664887, 221654209]

約数ペア:

[(1, 221654209), (7, 31664887), (19, 11666011), (47, 4716047), (59, 3756851), (133, 1666573), (329, 673721), (413, 536693), (601, 368809), (893, 248213), (1121, 197729), (2773, 79933), (4207, 52687), (6251, 35459), (7847, 28247), (11419, 19411)]