19948275

素因数分解:

$3^4\times 5^2\times {\mathrm{9851}}^1$

素因数の和:9873

約数の個数: 30

約数和(自身を含む): 36954852

約数和(自身を除く): 17006577

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9851, 29553, 49255, 88659, 147765, 246275, 265977, 443295, 738825, 797931, 1329885, 2216475, 3989655, 6649425, 19948275]

約数ペア:

[(1, 19948275), (3, 6649425), (5, 3989655), (9, 2216475), (15, 1329885), (25, 797931), (27, 738825), (45, 443295), (75, 265977), (81, 246275), (135, 147765), (225, 88659), (405, 49255), (675, 29553), (2025, 9851)]