978186321

素因数分解:

$3^3\times 7^1\times {\mathrm{2269}}^1\times {\mathrm{2281}}^1$

素因数の和:4566

約数の個数: 32

約数和(自身を含む): 1657644800

約数和(自身を除く): 679458479

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 2269, 2281, 6807, 6843, 15883, 15967, 20421, 20529, 47649, 47901, 61263, 61587, 142947, 143703, 428841, 431109, 5175589, 15526767, 36229123, 46580301, 108687369, 139740903, 326062107, 978186321]

約数ペア:

[(1, 978186321), (3, 326062107), (7, 139740903), (9, 108687369), (21, 46580301), (27, 36229123), (63, 15526767), (189, 5175589), (2269, 431109), (2281, 428841), (6807, 143703), (6843, 142947), (15883, 61587), (15967, 61263), (20421, 47901), (20529, 47649)]