19813977

素因数分解:

$3^5\times {\mathrm{67}}^1\times {\mathrm{1217}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 30147936

約数和(自身を除く): 10333959

約数列:

[1, 3, 9, 27, 67, 81, 201, 243, 603, 1217, 1809, 3651, 5427, 10953, 16281, 32859, 81539, 98577, 244617, 295731, 733851, 2201553, 6604659, 19813977]

約数ペア:

[(1, 19813977), (3, 6604659), (9, 2201553), (27, 733851), (67, 295731), (81, 244617), (201, 98577), (243, 81539), (603, 32859), (1217, 16281), (1809, 10953), (3651, 5427)]