215311527

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{16931}}^1$

素因数の和:17100

約数の個数: 20

約数和(自身を含む): 323705976

約数和(自身を除く): 108394449

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 4239, 12717, 16931, 50793, 152379, 457137, 1371411, 2658167, 7974501, 23923503, 71770509, 215311527]

約数ペア:

[(1, 215311527), (3, 71770509), (9, 23923503), (27, 7974501), (81, 2658167), (157, 1371411), (471, 457137), (1413, 152379), (4239, 50793), (12717, 16931)]