39947823

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 63684720

約数和(自身を除く): 23736897

約数列:

[1, 3, 9, 19, 27, 57, 81, 101, 171, 257, 303, 513, 771, 909, 1539, 1919, 2313, 2727, 4883, 5757, 6939, 8181, 14649, 17271, 20817, 25957, 43947, 51813, 77871, 131841, 155439, 233613, 395523, 493183, 700839, 1479549, 2102517, 4438647, 13315941, 39947823]

約数ペア:

[(1, 39947823), (3, 13315941), (9, 4438647), (19, 2102517), (27, 1479549), (57, 700839), (81, 493183), (101, 395523), (171, 233613), (257, 155439), (303, 131841), (513, 77871), (771, 51813), (909, 43947), (1539, 25957), (1919, 20817), (2313, 17271), (2727, 14649), (4883, 8181), (5757, 6939)]