19964565

素因数分解:

$3^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{911}}^1$

素因数の和:1409

約数の個数: 24

約数和(自身を含む): 34714368

約数和(自身を除く): 14749803

約数列:

[1, 3, 5, 9, 15, 45, 487, 911, 1461, 2435, 2733, 4383, 4555, 7305, 8199, 13665, 21915, 40995, 443657, 1330971, 2218285, 3992913, 6654855, 19964565]

約数ペア:

[(1, 19964565), (3, 6654855), (5, 3992913), (9, 2218285), (15, 1330971), (45, 443657), (487, 40995), (911, 21915), (1461, 13665), (2435, 8199), (2733, 7305), (4383, 4555)]