20852235

素因数分解:

$3^4\times 5^1\times {\mathrm{51487}}^1$

素因数の和:51504

約数の個数: 20

約数和(自身を含む): 37380288

約数和(自身を除く): 16528053

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 51487, 154461, 257435, 463383, 772305, 1390149, 2316915, 4170447, 6950745, 20852235]

約数ペア:

[(1, 20852235), (3, 6950745), (5, 4170447), (9, 2316915), (15, 1390149), (27, 772305), (45, 463383), (81, 257435), (135, 154461), (405, 51487)]