2780973

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:183

約数の個数: 40

約数和(自身を含む): 4743200

約数和(自身を除く): 1962227

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 139, 171, 247, 351, 417, 513, 741, 1053, 1251, 1539, 1807, 2223, 2641, 3753, 5421, 6669, 7923, 11259, 16263, 20007, 23769, 34333, 48789, 71307, 102999, 146367, 213921, 308997, 926991, 2780973]

約数ペア:

[(1, 2780973), (3, 926991), (9, 308997), (13, 213921), (19, 146367), (27, 102999), (39, 71307), (57, 48789), (81, 34333), (117, 23769), (139, 20007), (171, 16263), (247, 11259), (351, 7923), (417, 6669), (513, 5421), (741, 3753), (1053, 2641), (1251, 2223), (1539, 1807)]