19928385

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{11969}}^1$

素因数の和:12017

約数の個数: 24

約数和(自身を含む): 35479080

約数和(自身を除く): 15550695

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 11969, 35907, 59845, 107721, 179535, 442853, 538605, 1328559, 2214265, 3985677, 6642795, 19928385]

約数ペア:

[(1, 19928385), (3, 6642795), (5, 3985677), (9, 2214265), (15, 1328559), (37, 538605), (45, 442853), (111, 179535), (185, 107721), (333, 59845), (555, 35907), (1665, 11969)]