6420393

素因数分解:

$3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 10669568

約数和(自身を除く): 4249175

約数列:

[1, 3, 7, 9, 21, 63, 223, 457, 669, 1371, 1561, 2007, 3199, 4113, 4683, 9597, 14049, 28791, 101911, 305733, 713377, 917199, 2140131, 6420393]

約数ペア:

[(1, 6420393), (3, 2140131), (7, 917199), (9, 713377), (21, 305733), (63, 101911), (223, 28791), (457, 14049), (669, 9597), (1371, 4683), (1561, 4113), (2007, 3199)]