18921735

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{20023}}^1$

素因数の和:20044

約数の個数: 32

約数和(自身を含む): 38446080

約数和(自身を除く): 19524345

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 20023, 60069, 100115, 140161, 180207, 300345, 420483, 540621, 700805, 901035, 1261449, 2102415, 2703105, 3784347, 6307245, 18921735]

約数ペア:

[(1, 18921735), (3, 6307245), (5, 3784347), (7, 2703105), (9, 2102415), (15, 1261449), (21, 901035), (27, 700805), (35, 540621), (45, 420483), (63, 300345), (105, 180207), (135, 140161), (189, 100115), (315, 60069), (945, 20023)]