20873295

素因数分解:

$3^4\times 5^1\times {\mathrm{51539}}^1$

素因数の和:51556

約数の個数: 20

約数和(自身を含む): 37418040

約数和(自身を除く): 16544745

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 51539, 154617, 257695, 463851, 773085, 1391553, 2319255, 4174659, 6957765, 20873295]

約数ペア:

[(1, 20873295), (3, 6957765), (5, 4174659), (9, 2319255), (15, 1391553), (27, 773085), (45, 463851), (81, 257695), (135, 154617), (405, 51539)]