21722421

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{673}}^1$

素因数の和:765

約数の個数: 32

約数和(自身を含む): 34940160

約数和(自身を除く): 13217739

約数列:

[1, 3, 7, 21, 29, 53, 87, 159, 203, 371, 609, 673, 1113, 1537, 2019, 4611, 4711, 10759, 14133, 19517, 32277, 35669, 58551, 107007, 136619, 249683, 409857, 749049, 1034401, 3103203, 7240807, 21722421]

約数ペア:

[(1, 21722421), (3, 7240807), (7, 3103203), (21, 1034401), (29, 749049), (53, 409857), (87, 249683), (159, 136619), (203, 107007), (371, 58551), (609, 35669), (673, 32277), (1113, 19517), (1537, 14133), (2019, 10759), (4611, 4711)]