19925595

素因数分解:

$3^4\times 5^1\times {\mathrm{49199}}^1$

素因数の和:49216

約数の個数: 20

約数和(自身を含む): 35719200

約数和(自身を除く): 15793605

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49199, 147597, 245995, 442791, 737985, 1328373, 2213955, 3985119, 6641865, 19925595]

約数ペア:

[(1, 19925595), (3, 6641865), (5, 3985119), (9, 2213955), (15, 1328373), (27, 737985), (45, 442791), (81, 245995), (135, 147597), (405, 49199)]