128385537

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{12301}}^1$

素因数の和:12389

約数の個数: 24

約数和(自身を含む): 201949632

約数和(自身を除く): 73564095

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 3479, 10437, 12301, 36903, 86107, 258321, 602749, 873371, 1808247, 2620113, 6113597, 18340791, 42795179, 128385537]

約数ペア:

[(1, 128385537), (3, 42795179), (7, 18340791), (21, 6113597), (49, 2620113), (71, 1808247), (147, 873371), (213, 602749), (497, 258321), (1491, 86107), (3479, 36903), (10437, 12301)]