47280987

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21269}}^1$

素因数の和:21307

約数の個数: 24

約数和(自身を含む): 77422800

約数和(自身を除く): 30141813

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 21269, 63807, 191421, 276497, 404111, 829491, 1212333, 2488473, 3636999, 5253443, 15760329, 47280987]

約数ペア:

[(1, 47280987), (3, 15760329), (9, 5253443), (13, 3636999), (19, 2488473), (39, 1212333), (57, 829491), (117, 404111), (171, 276497), (247, 191421), (741, 63807), (2223, 21269)]