81721809

素因数分解:

$3^2\times {\mathrm{13}}^3\times {\mathrm{4133}}^1$

素因数の和:4178

約数の個数: 24

約数和(自身を含む): 127905960

約数和(自身を除く): 46184151

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 2197, 4133, 6591, 12399, 19773, 37197, 53729, 161187, 483561, 698477, 2095431, 6286293, 9080201, 27240603, 81721809]

約数ペア:

[(1, 81721809), (3, 27240603), (9, 9080201), (13, 6286293), (39, 2095431), (117, 698477), (169, 483561), (507, 161187), (1521, 53729), (2197, 37197), (4133, 19773), (6591, 12399)]