251724669

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{3863}}^1$

素因数の和:4009

約数の個数: 32

約数和(自身を含む): 400619520

約数和(自身を除く): 148894851

約数列:

[1, 3, 7, 21, 29, 87, 107, 203, 321, 609, 749, 2247, 3103, 3863, 9309, 11589, 21721, 27041, 65163, 81123, 112027, 336081, 413341, 784189, 1240023, 2352567, 2893387, 8680161, 11986889, 35960667, 83908223, 251724669]

約数ペア:

[(1, 251724669), (3, 83908223), (7, 35960667), (21, 11986889), (29, 8680161), (87, 2893387), (107, 2352567), (203, 1240023), (321, 784189), (609, 413341), (749, 336081), (2247, 112027), (3103, 81123), (3863, 65163), (9309, 27041), (11589, 21721)]