21059595

素因数分解:

$3^5\times 5^1\times {\mathrm{17333}}^1$

素因数の和:17353

約数の個数: 24

約数和(自身を含む): 37857456

約数和(自身を除く): 16797861

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 17333, 51999, 86665, 155997, 259995, 467991, 779985, 1403973, 2339955, 4211919, 7019865, 21059595]

約数ペア:

[(1, 21059595), (3, 7019865), (5, 4211919), (9, 2339955), (15, 1403973), (27, 779985), (45, 467991), (81, 259995), (135, 155997), (243, 86665), (405, 51999), (1215, 17333)]