20974719

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4621}}^1$

素因数の和:4730

約数の個数: 16

約数和(自身を含む): 29950560

約数和(自身を除く): 8975841

約数列:

[1, 3, 17, 51, 89, 267, 1513, 4539, 4621, 13863, 78557, 235671, 411269, 1233807, 6991573, 20974719]

約数ペア:

[(1, 20974719), (3, 6991573), (17, 1233807), (51, 411269), (89, 235671), (267, 78557), (1513, 13863), (4539, 4621)]