20545917

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{10993}}^1$

素因数の和:11092

約数の個数: 16

約数和(自身を含む): 31662720

約数和(自身を除く): 11116803

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 10993, 32979, 76951, 230853, 978377, 2935131, 6848639, 20545917]

約数ペア:

[(1, 20545917), (3, 6848639), (7, 2935131), (21, 978377), (89, 230853), (267, 76951), (623, 32979), (1869, 10993)]