1981707

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:108

約数の個数: 48

約数和(自身を含む): 3562272

約数和(自身を除く): 1580565

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 61, 91, 119, 147, 183, 221, 273, 357, 427, 637, 663, 793, 833, 1037, 1281, 1547, 1911, 2379, 2499, 2989, 3111, 4641, 5551, 7259, 8967, 10829, 13481, 16653, 21777, 32487, 38857, 40443, 50813, 94367, 116571, 152439, 283101, 660569, 1981707]

約数ペア:

[(1, 1981707), (3, 660569), (7, 283101), (13, 152439), (17, 116571), (21, 94367), (39, 50813), (49, 40443), (51, 38857), (61, 32487), (91, 21777), (119, 16653), (147, 13481), (183, 10829), (221, 8967), (273, 7259), (357, 5551), (427, 4641), (637, 3111), (663, 2989), (793, 2499), (833, 2379), (1037, 1911), (1281, 1547)]