20056815

素因数分解:

$3^4\times 5^1\times {\mathrm{49523}}^1$

素因数の和:49540

約数の個数: 20

約数和(自身を含む): 35954424

約数和(自身を除く): 15897609

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49523, 148569, 247615, 445707, 742845, 1337121, 2228535, 4011363, 6685605, 20056815]

約数ペア:

[(1, 20056815), (3, 6685605), (5, 4011363), (9, 2228535), (15, 1337121), (27, 742845), (45, 445707), (81, 247615), (135, 148569), (405, 49523)]