2991807

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{281}}^1$

素因数の和:320

約数の個数: 36

約数和(自身を含む): 5367024

約数和(自身を除く): 2375217

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 169, 273, 281, 507, 819, 843, 1183, 1521, 1967, 2529, 3549, 3653, 5901, 10647, 10959, 17703, 25571, 32877, 47489, 76713, 142467, 230139, 332423, 427401, 997269, 2991807]

約数ペア:

[(1, 2991807), (3, 997269), (7, 427401), (9, 332423), (13, 230139), (21, 142467), (39, 76713), (63, 47489), (91, 32877), (117, 25571), (169, 17703), (273, 10959), (281, 10647), (507, 5901), (819, 3653), (843, 3549), (1183, 2529), (1521, 1967)]