664797537

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{7649}}^1$

素因数の和:7727

約数の個数: 40

約数和(自身を含む): 1055241000

約数和(自身を除く): 390443463

約数列:

[1, 3, 9, 27, 29, 37, 81, 87, 111, 261, 333, 783, 999, 1073, 2349, 2997, 3219, 7649, 9657, 22947, 28971, 68841, 86913, 206523, 221821, 283013, 619569, 665463, 849039, 1996389, 2547117, 5989167, 7641351, 8207377, 17967501, 22924053, 24622131, 73866393, 221599179, 664797537]

約数ペア:

[(1, 664797537), (3, 221599179), (9, 73866393), (27, 24622131), (29, 22924053), (37, 17967501), (81, 8207377), (87, 7641351), (111, 5989167), (261, 2547117), (333, 1996389), (783, 849039), (999, 665463), (1073, 619569), (2349, 283013), (2997, 221821), (3219, 206523), (7649, 86913), (9657, 68841), (22947, 28971)]