81017577

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{863}}^1$

素因数の和:955

約数の個数: 40

約数和(自身を含む): 129634560

約数和(自身を除く): 48616983

約数列:

[1, 3, 9, 19, 27, 57, 61, 81, 171, 183, 513, 549, 863, 1159, 1539, 1647, 2589, 3477, 4941, 7767, 10431, 16397, 23301, 31293, 49191, 52643, 69903, 93879, 147573, 157929, 442719, 473787, 1000217, 1328157, 1421361, 3000651, 4264083, 9001953, 27005859, 81017577]

約数ペア:

[(1, 81017577), (3, 27005859), (9, 9001953), (19, 4264083), (27, 3000651), (57, 1421361), (61, 1328157), (81, 1000217), (171, 473787), (183, 442719), (513, 157929), (549, 147573), (863, 93879), (1159, 69903), (1539, 52643), (1647, 49191), (2589, 31293), (3477, 23301), (4941, 16397), (7767, 10431)]