19848565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{563}}^1\times {\mathrm{641}}^1$

素因数の和:1220

約数の個数: 16

約数和(自身を含む): 26070336

約数和(自身を除く): 6221771

約数列:

[1, 5, 11, 55, 563, 641, 2815, 3205, 6193, 7051, 30965, 35255, 360883, 1804415, 3969713, 19848565]

約数ペア:

[(1, 19848565), (5, 3969713), (11, 1804415), (55, 360883), (563, 35255), (641, 30965), (2815, 7051), (3205, 6193)]