128421601

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 165484800

約数和(自身を除く): 37063199

約数列:

[1, 7, 11, 49, 77, 101, 337, 343, 539, 707, 1111, 2359, 3707, 3773, 4949, 7777, 16513, 25949, 34037, 34643, 54439, 115591, 181643, 238259, 374407, 381073, 1271501, 1667813, 2620849, 11674691, 18345943, 128421601]

約数ペア:

[(1, 128421601), (7, 18345943), (11, 11674691), (49, 2620849), (77, 1667813), (101, 1271501), (337, 381073), (343, 374407), (539, 238259), (707, 181643), (1111, 115591), (2359, 54439), (3707, 34643), (3773, 34037), (4949, 25949), (7777, 16513)]