821000733

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{271}}^1\times {\mathrm{557}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 1314987264

約数和(自身を除く): 493986531

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 271, 557, 777, 813, 1671, 1813, 1897, 3899, 5439, 5691, 10027, 11697, 13279, 20609, 27293, 30081, 39837, 61827, 70189, 81879, 144263, 150947, 210567, 432789, 452841, 491323, 1009841, 1056629, 1473969, 3029523, 3169887, 5585039, 7396403, 16755117, 22189209, 39095273, 117285819, 273666911, 821000733]

約数ペア:

[(1, 821000733), (3, 273666911), (7, 117285819), (21, 39095273), (37, 22189209), (49, 16755117), (111, 7396403), (147, 5585039), (259, 3169887), (271, 3029523), (557, 1473969), (777, 1056629), (813, 1009841), (1671, 491323), (1813, 452841), (1897, 432789), (3899, 210567), (5439, 150947), (5691, 144263), (10027, 81879), (11697, 70189), (13279, 61827), (20609, 39837), (27293, 30081)]