121520007

素因数分解:

$3^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2003}}^1$

素因数の和:2129

約数の個数: 40

約数和(自身を含む): 209506176

約数和(自身を除く): 87986169

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 107, 189, 321, 567, 749, 963, 2003, 2247, 2889, 6009, 6741, 8667, 14021, 18027, 20223, 42063, 54081, 60669, 126189, 162243, 214321, 378567, 642963, 1135701, 1500247, 1928889, 4500741, 5786667, 13502223, 17360001, 40506669, 121520007]

約数ペア:

[(1, 121520007), (3, 40506669), (7, 17360001), (9, 13502223), (21, 5786667), (27, 4500741), (63, 1928889), (81, 1500247), (107, 1135701), (189, 642963), (321, 378567), (567, 214321), (749, 162243), (963, 126189), (2003, 60669), (2247, 54081), (2889, 42063), (6009, 20223), (6741, 18027), (8667, 14021)]