42127857

素因数分解:

$3^4\times {\mathrm{401}}^1\times {\mathrm{1297}}^1$

素因数の和:1710

約数の個数: 20

約数和(自身を含む): 63137316

約数和(自身を除く): 21009459

約数列:

[1, 3, 9, 27, 81, 401, 1203, 1297, 3609, 3891, 10827, 11673, 32481, 35019, 105057, 520097, 1560291, 4680873, 14042619, 42127857]

約数ペア:

[(1, 42127857), (3, 14042619), (9, 4680873), (27, 1560291), (81, 520097), (401, 105057), (1203, 35019), (1297, 32481), (3609, 11673), (3891, 10827)]