142720011

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{31907}}^1$

素因数の和:31991

約数の個数: 24

約数和(自身を含む): 238927104

約数和(自身を除く): 96207093

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 31907, 95721, 223349, 287163, 670047, 2010141, 2265397, 6796191, 15857779, 20388573, 47573337, 142720011]

約数ペア:

[(1, 142720011), (3, 47573337), (7, 20388573), (9, 15857779), (21, 6796191), (63, 2265397), (71, 2010141), (213, 670047), (497, 287163), (639, 223349), (1491, 95721), (4473, 31907)]