209755553

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{4111}}^1$

素因数の和:4352

約数の個数: 16

約数和(自身を含む): 247509504

約数和(自身を除く): 37753951

約数列:

[1, 7, 37, 197, 259, 1379, 4111, 7289, 28777, 51023, 152107, 809867, 1064749, 5669069, 29965079, 209755553]

約数ペア:

[(1, 209755553), (7, 29965079), (37, 5669069), (197, 1064749), (259, 809867), (1379, 152107), (4111, 51023), (7289, 28777)]