2019389211

素因数分解:

$3^4\times 7^1\times {\mathrm{223}}^1\times {\mathrm{15971}}^1$

素因数の和:16213

約数の個数: 40

約数和(自身を含む): 3463240704

約数和(自身を除く): 1443851493

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 223, 567, 669, 1561, 2007, 4683, 6021, 14049, 15971, 18063, 42147, 47913, 111797, 126441, 143739, 335391, 431217, 1006173, 1293651, 3018519, 3561533, 9055557, 10684599, 24930731, 32053797, 74792193, 96161391, 224376579, 288484173, 673129737, 2019389211]

約数ペア:

[(1, 2019389211), (3, 673129737), (7, 288484173), (9, 224376579), (21, 96161391), (27, 74792193), (63, 32053797), (81, 24930731), (189, 10684599), (223, 9055557), (567, 3561533), (669, 3018519), (1561, 1293651), (2007, 1006173), (4683, 431217), (6021, 335391), (14049, 143739), (15971, 126441), (18063, 111797), (42147, 47913)]