19999176537

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1693267}}^1$

素因数の和:1693428

約数の個数: 16

約数和(自身を含む): 27742502912

約数和(自身を除く): 7743326375

約数列:

[1, 3, 31, 93, 127, 381, 3937, 11811, 1693267, 5079801, 52491277, 157473831, 215044909, 645134727, 6666392179, 19999176537]

約数ペア:

[(1, 19999176537), (3, 6666392179), (31, 645134727), (93, 215044909), (127, 157473831), (381, 52491277), (3937, 5079801), (11811, 1693267)]