20815308

素因数分解:

$2^2\times 3^2\times {\mathrm{578203}}^1$

素因数の和:578213

約数の個数: 18

約数和(自身を含む): 52616564

約数和(自身を除く): 31801256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 578203, 1156406, 1734609, 2312812, 3469218, 5203827, 6938436, 10407654, 20815308]

約数ペア:

[(1, 20815308), (2, 10407654), (3, 6938436), (4, 5203827), (6, 3469218), (9, 2312812), (12, 1734609), (18, 1156406), (36, 578203)]