19896987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1223}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 31726080

約数和(自身を除く): 11829093

約数列:

[1, 3, 11, 17, 29, 33, 51, 87, 187, 319, 493, 561, 957, 1223, 1479, 3669, 5423, 13453, 16269, 20791, 35467, 40359, 62373, 106401, 228701, 390137, 602939, 686103, 1170411, 1808817, 6632329, 19896987]

約数ペア:

[(1, 19896987), (3, 6632329), (11, 1808817), (17, 1170411), (29, 686103), (33, 602939), (51, 390137), (87, 228701), (187, 106401), (319, 62373), (493, 40359), (561, 35467), (957, 20791), (1223, 16269), (1479, 13453), (3669, 5423)]