813906863

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{181}}^1\times {\mathrm{5309}}^1$

素因数の和:5519

約数の個数: 24

約数和(自身を含む): 1028270880

約数和(自身を除く): 214364017

約数列:

[1, 7, 11, 77, 121, 181, 847, 1267, 1991, 5309, 13937, 21901, 37163, 58399, 153307, 408793, 642389, 960929, 4496723, 6726503, 10570219, 73991533, 116272409, 813906863]

約数ペア:

[(1, 813906863), (7, 116272409), (11, 73991533), (77, 10570219), (121, 6726503), (181, 4496723), (847, 960929), (1267, 642389), (1991, 408793), (5309, 153307), (13937, 58399), (21901, 37163)]