20744685

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35461}}^1$

素因数の和:35485

約数の個数: 24

約数和(自身を含む): 38724504

約数和(自身を除く): 17979819

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 35461, 106383, 177305, 319149, 460993, 531915, 1382979, 1595745, 2304965, 4148937, 6914895, 20744685]

約数ペア:

[(1, 20744685), (3, 6914895), (5, 4148937), (9, 2304965), (13, 1595745), (15, 1382979), (39, 531915), (45, 460993), (65, 319149), (117, 177305), (195, 106383), (585, 35461)]