20280273

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{983}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 30472512

約数和(自身を除く): 10192239

約数列:

[1, 3, 13, 23, 39, 69, 299, 529, 897, 983, 1587, 2949, 6877, 12779, 20631, 22609, 38337, 67827, 293917, 520007, 881751, 1560021, 6760091, 20280273]

約数ペア:

[(1, 20280273), (3, 6760091), (13, 1560021), (23, 881751), (39, 520007), (69, 293917), (299, 67827), (529, 38337), (897, 22609), (983, 20631), (1587, 12779), (2949, 6877)]