19716408045

素因数分解:

$3^4\times 5^1\times {\mathrm{48682489}}^1$

素因数の和:48682506

約数の個数: 20

約数和(自身を含む): 35343487740

約数和(自身を除く): 15627079695

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 48682489, 146047467, 243412445, 438142401, 730237335, 1314427203, 2190712005, 3943281609, 6572136015, 19716408045]

約数ペア:

[(1, 19716408045), (3, 6572136015), (5, 3943281609), (9, 2190712005), (15, 1314427203), (27, 730237335), (45, 438142401), (81, 243412445), (135, 146047467), (405, 48682489)]