21529053

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 38811136

約数和(自身を除く): 17282083

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 97, 117, 271, 273, 291, 679, 813, 819, 873, 1261, 1897, 2037, 2439, 3523, 3783, 5691, 6111, 8827, 10569, 11349, 17073, 24661, 26287, 26481, 31707, 73983, 78861, 79443, 184009, 221949, 236583, 341731, 552027, 1025193, 1656081, 2392117, 3075579, 7176351, 21529053]

約数ペア:

[(1, 21529053), (3, 7176351), (7, 3075579), (9, 2392117), (13, 1656081), (21, 1025193), (39, 552027), (63, 341731), (91, 236583), (97, 221949), (117, 184009), (271, 79443), (273, 78861), (291, 73983), (679, 31707), (813, 26481), (819, 26287), (873, 24661), (1261, 17073), (1897, 11349), (2037, 10569), (2439, 8827), (3523, 6111), (3783, 5691)]