209280729

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{3187}}^1$

素因数の和:3309

約数の個数: 32

約数和(自身を含む): 330531840

約数和(自身を除く): 121251111

約数列:

[1, 3, 7, 21, 53, 59, 159, 177, 371, 413, 1113, 1239, 3127, 3187, 9381, 9561, 21889, 22309, 65667, 66927, 168911, 188033, 506733, 564099, 1182377, 1316231, 3547131, 3948693, 9965749, 29897247, 69760243, 209280729]

約数ペア:

[(1, 209280729), (3, 69760243), (7, 29897247), (21, 9965749), (53, 3948693), (59, 3547131), (159, 1316231), (177, 1182377), (371, 564099), (413, 506733), (1113, 188033), (1239, 168911), (3127, 66927), (3187, 65667), (9381, 22309), (9561, 21889)]