18883935

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{6661}}^1$

素因数の和:6685

約数の個数: 40

約数和(自身を含む): 38692896

約数和(自身を除く): 19808961

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 6661, 19983, 33305, 46627, 59949, 99915, 139881, 179847, 233135, 299745, 419643, 539541, 699405, 899235, 1258929, 2098215, 2697705, 3776787, 6294645, 18883935]

約数ペア:

[(1, 18883935), (3, 6294645), (5, 3776787), (7, 2697705), (9, 2098215), (15, 1258929), (21, 899235), (27, 699405), (35, 539541), (45, 419643), (63, 299745), (81, 233135), (105, 179847), (135, 139881), (189, 99915), (315, 59949), (405, 46627), (567, 33305), (945, 19983), (2835, 6661)]