128706327

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{51257}}^1$

素因数の和:51300

約数の個数: 20

約数和(自身を含む): 198470976

約数和(自身を除く): 69764649

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 51257, 153771, 461313, 1383939, 1588967, 4151817, 4766901, 14300703, 42902109, 128706327]

約数ペア:

[(1, 128706327), (3, 42902109), (9, 14300703), (27, 4766901), (31, 4151817), (81, 1588967), (93, 1383939), (279, 461313), (837, 153771), (2511, 51257)]